./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI --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 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 --- 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-5e519f3 [2022-11-03 02:36:54,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:36:54,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:36:54,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:36:54,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:36:54,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:36:54,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:36:54,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:36:54,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:36:54,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:36:54,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:36:54,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:36:54,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:36:54,197 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:36:54,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:36:54,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:36:54,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:36:54,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:36:54,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:36:54,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:36:54,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:36:54,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:36:54,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:36:54,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:36:54,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:36:54,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:36:54,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:36:54,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:36:54,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:36:54,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:36:54,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:36:54,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:36:54,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:36:54,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:36:54,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:36:54,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:36:54,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:36:54,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:36:54,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:36:54,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:36:54,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:36:54,240 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:36:54,280 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:36:54,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:36:54,281 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:36:54,281 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:36:54,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:36:54,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:36:54,282 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:36:54,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:36:54,283 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:36:54,283 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:36:54,284 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:36:54,284 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:36:54,284 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:36:54,285 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:36:54,285 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:36:54,285 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:36:54,285 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:36:54,285 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:36:54,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:36:54,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:36:54,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:36:54,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:36:54,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:36:54,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:36:54,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:36:54,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:36:54,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:36:54,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:36:54,290 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:36:54,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:36:54,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:36:54,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:36:54,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:36:54,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:36:54,291 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:36:54,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:36:54,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:36:54,292 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:36:54,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:36:54,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:36:54,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:36:54,293 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_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c377c3922cafbc07c158cb252290a97b70e1cbfc6e9de773d7729c460f56857 [2022-11-03 02:36:54,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:36:54,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:36:54,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:36:54,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:36:54,593 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:36:54,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-fpi/ifeqn1.c [2022-11-03 02:36:54,686 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/data/e5ca471b2/93db9a17c1ee4e2380c7717eef38fa8c/FLAGd3de92954 [2022-11-03 02:36:55,240 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:36:55,242 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/sv-benchmarks/c/array-fpi/ifeqn1.c [2022-11-03 02:36:55,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/data/e5ca471b2/93db9a17c1ee4e2380c7717eef38fa8c/FLAGd3de92954 [2022-11-03 02:36:55,591 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/data/e5ca471b2/93db9a17c1ee4e2380c7717eef38fa8c [2022-11-03 02:36:55,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:36:55,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:36:55,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:36:55,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:36:55,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:36:55,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2734b381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55, skipping insertion in model container [2022-11-03 02:36:55,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:36:55,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:36:55,831 WARN L230 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_06566e91-7d5e-4d9f-9d26-77a5e5df6812/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2022-11-03 02:36:55,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:36:55,857 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:36:55,870 WARN L230 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_06566e91-7d5e-4d9f-9d26-77a5e5df6812/sv-benchmarks/c/array-fpi/ifeqn1.c[589,602] [2022-11-03 02:36:55,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:36:55,914 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:36:55,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55 WrapperNode [2022-11-03 02:36:55,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:36:55,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:36:55,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:36:55,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:36:55,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,961 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-11-03 02:36:55,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:36:55,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:36:55,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:36:55,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:36:55,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:55,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:36:55,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:36:55,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:36:55,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:36:55,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (1/1) ... [2022-11-03 02:36:56,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:36:56,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:56,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:36:56,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:36:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:36:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:36:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:36:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:36:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:36:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:36:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:36:56,138 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:36:56,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:36:56,301 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:36:56,399 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:36:56,400 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 02:36:56,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:36:56 BoogieIcfgContainer [2022-11-03 02:36:56,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:36:56,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:36:56,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:36:56,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:36:56,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:36:55" (1/3) ... [2022-11-03 02:36:56,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c6940b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:36:56, skipping insertion in model container [2022-11-03 02:36:56,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:36:55" (2/3) ... [2022-11-03 02:36:56,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c6940b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:36:56, skipping insertion in model container [2022-11-03 02:36:56,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:36:56" (3/3) ... [2022-11-03 02:36:56,444 INFO L112 eAbstractionObserver]: Analyzing ICFG ifeqn1.c [2022-11-03 02:36:56,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:36:56,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:36:56,560 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:36:56,570 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;@4827fd14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:36:56,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:36:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:56,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 02:36:56,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:56,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:56,583 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:56,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1095923036, now seen corresponding path program 1 times [2022-11-03 02:36:56,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:56,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090595354] [2022-11-03 02:36:56,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:56,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:56,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:56,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090595354] [2022-11-03 02:36:56,841 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-03 02:36:56,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617307435] [2022-11-03 02:36:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:56,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:56,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:56,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:36:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:56,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:36:56,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:36:57,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:36:57,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617307435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:57,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:57,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:36:57,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358016180] [2022-11-03 02:36:57,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:57,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:36:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:36:57,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:36:57,132 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:57,205 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2022-11-03 02:36:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:36:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-03 02:36:57,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:57,217 INFO L225 Difference]: With dead ends: 20 [2022-11-03 02:36:57,217 INFO L226 Difference]: Without dead ends: 10 [2022-11-03 02:36:57,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:36:57,225 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:57,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:36:57,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-03 02:36:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-03 02:36:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-03 02:36:57,257 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2022-11-03 02:36:57,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:57,258 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-03 02:36:57,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-03 02:36:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 02:36:57,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:57,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:57,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-03 02:36:57,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:57,479 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:57,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:57,479 INFO L85 PathProgramCache]: Analyzing trace with hash 255696374, now seen corresponding path program 1 times [2022-11-03 02:36:57,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:57,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128342996] [2022-11-03 02:36:57,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:57,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:57,520 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:57,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803293902] [2022-11-03 02:36:57,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:57,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:57,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:57,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:57,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:36:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:57,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:36:57,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:57,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:36:57,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:36:57,646 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:57,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128342996] [2022-11-03 02:36:57,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:57,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803293902] [2022-11-03 02:36:57,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803293902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:36:57,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:36:57,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:36:57,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400440058] [2022-11-03 02:36:57,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:36:57,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:36:57,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:36:57,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:36:57,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:36:57,649 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:36:57,704 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-03 02:36:57,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:36:57,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 02:36:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:36:57,706 INFO L225 Difference]: With dead ends: 21 [2022-11-03 02:36:57,706 INFO L226 Difference]: Without dead ends: 16 [2022-11-03 02:36:57,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:36:57,709 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:36:57,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 6 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:36:57,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-03 02:36:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2022-11-03 02:36:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-03 02:36:57,717 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2022-11-03 02:36:57,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:36:57,717 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-03 02:36:57,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:36:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-03 02:36:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:36:57,718 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:36:57,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:36:57,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:36:57,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:57,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:36:57,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:36:57,920 INFO L85 PathProgramCache]: Analyzing trace with hash -652476163, now seen corresponding path program 1 times [2022-11-03 02:36:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:36:57,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612675361] [2022-11-03 02:36:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:57,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:36:57,949 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:36:57,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699788400] [2022-11-03 02:36:57,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:36:57,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:36:57,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:36:57,951 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:36:57,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 02:36:58,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:36:58,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-03 02:36:58,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:36:58,133 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:36:58,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:36:58,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:36:58,388 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:58,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:36:58,409 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:36:58,410 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:36:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:36:58,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:36:58,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612675361] [2022-11-03 02:36:58,450 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:36:58,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699788400] [2022-11-03 02:36:58,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699788400] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:36:58,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [180632868] [2022-11-03 02:36:58,479 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:36:58,480 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:36:58,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:36:58,488 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:36:58,489 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:36:58,704 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:36:58,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:36:58,869 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:36:58,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:36:58,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:36:59,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,245 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:36:59,246 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:36:59,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 82 [2022-11-03 02:36:59,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:59,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:36:59,705 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:36:59,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:36:59,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:36:59,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:36:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:36:59,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:36:59,853 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:36:59,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:36:59,877 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:00,253 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '201#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:00,253 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:00,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:00,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2022-11-03 02:37:00,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939908144] [2022-11-03 02:37:00,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:00,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 02:37:00,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:00,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 02:37:00,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:37:00,256 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:00,412 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-03 02:37:00,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 02:37:00,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:37:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:00,413 INFO L225 Difference]: With dead ends: 28 [2022-11-03 02:37:00,414 INFO L226 Difference]: Without dead ends: 26 [2022-11-03 02:37:00,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:37:00,415 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:00,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:00,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-03 02:37:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 14. [2022-11-03 02:37:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-03 02:37:00,420 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 9 [2022-11-03 02:37:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:00,420 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-03 02:37:00,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-03 02:37:00,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:37:00,421 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:00,422 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:00,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:00,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:00,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:00,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1258946262, now seen corresponding path program 2 times [2022-11-03 02:37:00,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:00,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008754376] [2022-11-03 02:37:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:00,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:00,681 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:00,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2032147873] [2022-11-03 02:37:00,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:37:00,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:00,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:00,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:00,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 02:37:00,763 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 02:37:00,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:00,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 02:37:00,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:00,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:00,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:00,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008754376] [2022-11-03 02:37:00,858 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:00,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032147873] [2022-11-03 02:37:00,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032147873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:00,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280566934] [2022-11-03 02:37:00,860 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:00,860 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:00,861 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:00,861 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:00,861 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:00,990 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:00,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:01,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:37:01,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:01,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:01,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,250 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:01,251 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:01,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 86 treesize of output 77 [2022-11-03 02:37:01,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:01,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:37:01,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:01,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:01,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:01,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:01,682 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:01,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:01,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:01,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:01,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:01,762 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:01,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:01,784 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:02,114 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '331#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:02,114 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:02,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:02,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-03 02:37:02,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909821888] [2022-11-03 02:37:02,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:02,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:37:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:02,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:37:02,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2022-11-03 02:37:02,117 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:02,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:02,231 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-11-03 02:37:02,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:37:02,232 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:37:02,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:02,232 INFO L225 Difference]: With dead ends: 35 [2022-11-03 02:37:02,232 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:37:02,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:37:02,234 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:02,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:37:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 13. [2022-11-03 02:37:02,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:02,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-11-03 02:37:02,238 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2022-11-03 02:37:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:02,238 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-03 02:37:02,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-11-03 02:37:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:37:02,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:02,239 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:02,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:02,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:02,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash 2034389572, now seen corresponding path program 3 times [2022-11-03 02:37:02,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136513208] [2022-11-03 02:37:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:02,477 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340047489] [2022-11-03 02:37:02,485 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:37:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:02,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:02,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:02,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 02:37:02,729 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:37:02,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:02,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 02:37:02,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:02,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:02,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:02,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:37:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:37:02,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:03,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:03,125 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:03,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:37:03,141 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:03,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:03,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 8 treesize of output 4 [2022-11-03 02:37:03,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 30 treesize of output 28 [2022-11-03 02:37:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 02:37:03,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:03,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136513208] [2022-11-03 02:37:03,185 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:03,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340047489] [2022-11-03 02:37:03,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340047489] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:03,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [260282198] [2022-11-03 02:37:03,187 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:03,187 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:03,188 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:03,188 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:03,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:03,314 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:03,315 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:03,445 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:03,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:03,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:03,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:03,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:03,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:03,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:03,669 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:03,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:03,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:03,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 86 treesize of output 77 [2022-11-03 02:37:03,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:03,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:37:03,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:03,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:03,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:03,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:04,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:04,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:04,028 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:04,034 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:04,035 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:04,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:04,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:04,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:04,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:04,091 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:04,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:04,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:04,117 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:04,484 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '482#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:04,484 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:04,484 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:04,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 12 [2022-11-03 02:37:04,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220922822] [2022-11-03 02:37:04,485 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:04,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:37:04,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:04,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:37:04,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:37:04,486 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:04,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:04,658 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-11-03 02:37:04,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:37:04,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-03 02:37:04,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:04,659 INFO L225 Difference]: With dead ends: 34 [2022-11-03 02:37:04,659 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 02:37:04,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:37:04,661 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:04,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 33 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 77 Invalid, 0 Unknown, 6 Unchecked, 0.1s Time] [2022-11-03 02:37:04,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 02:37:04,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 16. [2022-11-03 02:37:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:04,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-03 02:37:04,667 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-11-03 02:37:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:04,668 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-03 02:37:04,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:04,668 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-03 02:37:04,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:37:04,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:04,669 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:04,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:04,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:04,870 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:04,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:04,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1347561873, now seen corresponding path program 4 times [2022-11-03 02:37:04,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:04,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782127492] [2022-11-03 02:37:04,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:04,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:04,907 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:04,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893156147] [2022-11-03 02:37:04,908 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:37:04,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:04,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:04,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:04,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 02:37:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:04,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:37:04,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:05,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:05,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782127492] [2022-11-03 02:37:05,084 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893156147] [2022-11-03 02:37:05,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893156147] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [635368294] [2022-11-03 02:37:05,086 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:05,087 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:05,087 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:05,087 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:05,087 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:05,213 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:05,213 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:05,340 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:05,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:05,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:05,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,574 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:05,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:05,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 132 [2022-11-03 02:37:05,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,808 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 113 treesize of output 38 [2022-11-03 02:37:05,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:05,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:05,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:05,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:05,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:05,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:05,993 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:05,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:06,012 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:06,361 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '639#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:06,361 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:06,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:06,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-03 02:37:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126460562] [2022-11-03 02:37:06,361 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:06,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 02:37:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 02:37:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-03 02:37:06,363 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:06,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:06,523 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-03 02:37:06,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:37:06,524 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:37:06,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:06,524 INFO L225 Difference]: With dead ends: 48 [2022-11-03 02:37:06,524 INFO L226 Difference]: Without dead ends: 40 [2022-11-03 02:37:06,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:37:06,526 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 24 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:06,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 31 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-03 02:37:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2022-11-03 02:37:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-03 02:37:06,538 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-11-03 02:37:06,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:06,538 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-03 02:37:06,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:06,539 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-03 02:37:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 02:37:06,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:06,539 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:06,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-03 02:37:06,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 02:37:06,763 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:06,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:06,763 INFO L85 PathProgramCache]: Analyzing trace with hash 824116829, now seen corresponding path program 5 times [2022-11-03 02:37:06,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:06,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81826132] [2022-11-03 02:37:06,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:06,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:06,809 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:06,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4276276] [2022-11-03 02:37:06,818 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:37:06,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:06,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:06,820 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:06,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 02:37:07,245 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:37:07,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:07,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 02:37:07,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:07,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:07,384 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:37:07,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 85 [2022-11-03 02:37:07,451 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-03 02:37:07,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-11-03 02:37:07,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 12 [2022-11-03 02:37:07,544 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 8 treesize of output 1 [2022-11-03 02:37:07,567 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 02:37:07,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 24 [2022-11-03 02:37:09,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 61 treesize of output 53 [2022-11-03 02:37:09,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 47 treesize of output 41 [2022-11-03 02:37:09,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:09,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:09,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:11,443 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~N~0)))) (or (not (< 0 c_~N~0)) (< 1 c_~N~0)) (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~N~0)))))) is different from false [2022-11-03 02:37:11,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 24 [2022-11-03 02:37:11,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:13,215 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse4 (or (not (< 0 c_~N~0)) (< 1 c_~N~0))) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse6 (* .cse10 8)) (.cse0 (<= .cse10 2147483647))) (and (not (= |c_ULTIMATE.start_main_~i~0#1| 0)) (or (not .cse0) (let ((.cse2 (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse1 .cse2 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~N~0)))) .cse4 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse1 .cse2 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~N~0))))))) (or (let ((.cse8 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~N~0) (= (select (store (store .cse1 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) .cse4 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse1 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~N~0)))))) .cse0)))) is different from false [2022-11-03 02:37:13,315 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:13,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:37:13,329 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:13,330 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:13,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:13,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 24 [2022-11-03 02:37:13,674 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 72 treesize of output 70 [2022-11-03 02:37:13,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 30 treesize of output 28 [2022-11-03 02:37:13,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 70 treesize of output 66 [2022-11-03 02:37:13,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 210 treesize of output 204 [2022-11-03 02:37:14,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 02:37:14,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81826132] [2022-11-03 02:37:14,026 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4276276] [2022-11-03 02:37:14,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4276276] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:14,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [578902230] [2022-11-03 02:37:14,029 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:14,029 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:14,029 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:14,029 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:14,029 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:14,154 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:14,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:14,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:37:14,234 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:14,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:14,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,438 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:14,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:14,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 137 [2022-11-03 02:37:14,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:14,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 66 [2022-11-03 02:37:14,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:14,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:14,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:14,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:14,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:14,809 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:14,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:14,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:14,834 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:17,959 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '850#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:17,959 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:17,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:17,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2022-11-03 02:37:17,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099648460] [2022-11-03 02:37:17,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:17,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:37:17,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:17,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:37:17,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=504, Unknown=3, NotChecked=98, Total=756 [2022-11-03 02:37:17,961 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:19,343 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse11 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse5 (or (not (< 0 c_~N~0)) (< 1 c_~N~0))) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse7 (* .cse11 8)) (.cse2 (<= .cse11 2147483647)) (.cse0 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0))) (and (or .cse0 (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) (not (= |c_ULTIMATE.start_main_~i~0#1| 0)) (or (not .cse2) (let ((.cse3 (+ .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse1 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4 1) c_~N~0)))) .cse5 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse6 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse1 .cse3 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse6)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse6 1) c_~N~0))))))) (<= c_~N~0 2147483647) (or (let ((.cse9 (+ .cse7 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse8 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse8 1) c_~N~0) (= (select (store (store .cse1 .cse9 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) .cse5 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse10 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse1 .cse9 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse10 1) c_~N~0)))))) .cse2) (or (< (+ (* 4294967296 (div (+ (- 1) c_~N~0) 4294967296)) 1) c_~N~0) .cse0) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-11-03 02:37:20,606 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse10 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse4 (or (not (< 0 c_~N~0)) (< 1 c_~N~0))) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse6 (* .cse10 8)) (.cse1 (<= .cse10 2147483647))) (and (not (= |c_ULTIMATE.start_main_~i~0#1| 0)) (<= 3 c_~N~0) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (or (not .cse1) (let ((.cse2 (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse0 .cse2 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3 1) c_~N~0)))) .cse4 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store .cse0 .cse2 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1) c_~N~0))))))) (<= c_~N~0 2147483647) (or (let ((.cse8 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~N~0) (= (select (store (store .cse0 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)))) .cse4 (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_251 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse9 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store .cse0 .cse8 v_ArrVal_251) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse9 1) c_~N~0)))))) .cse1) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-11-03 02:37:21,843 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse0 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0)) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1) c_~N~0)))) (or (not (< 0 c_~N~0)) (< 1 c_~N~0)) (<= 3 c_~N~0) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 2147483647) (forall ((v_ArrVal_255 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_255) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1) c_~N~0)))) (exists ((|aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| Int) (v_DerPreprocessor_6 Int) (|aux_div_v_ULTIMATE.start_main_~i~0#1_123_51| Int)) (let ((.cse3 (* |aux_div_v_ULTIMATE.start_main_~i~0#1_123_51| 4294967296))) (and (< (+ .cse3 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51|) c_~N~0) (<= |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 2147483647) (= (select (let ((.cse5 (* (mod |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 4294967296) 8))) (let ((.cse4 (+ .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|))) (store (store .cse1 .cse4 v_DerPreprocessor_6) (+ .cse5 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse1 .cse4)))) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= |c_ULTIMATE.start_main_~i~0#1| (+ .cse3 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51| 1)) (<= 0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_123_51|)))))) is different from false [2022-11-03 02:37:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:21,979 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-03 02:37:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 02:37:21,980 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-03 02:37:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:21,981 INFO L225 Difference]: With dead ends: 32 [2022-11-03 02:37:21,981 INFO L226 Difference]: Without dead ends: 30 [2022-11-03 02:37:21,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=219, Invalid=787, Unknown=6, NotChecked=320, Total=1332 [2022-11-03 02:37:21,982 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:21,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 26 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 114 Invalid, 0 Unknown, 71 Unchecked, 0.3s Time] [2022-11-03 02:37:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-03 02:37:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2022-11-03 02:37:21,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-03 02:37:21,993 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 13 [2022-11-03 02:37:21,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:21,993 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-03 02:37:21,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:21,994 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-03 02:37:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:37:21,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:21,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:22,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:22,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:22,201 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:22,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:22,201 INFO L85 PathProgramCache]: Analyzing trace with hash 221349744, now seen corresponding path program 1 times [2022-11-03 02:37:22,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:22,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644941781] [2022-11-03 02:37:22,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:22,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:22,223 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:22,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083369327] [2022-11-03 02:37:22,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:22,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:22,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:22,225 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:22,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 02:37:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:22,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-03 02:37:22,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:22,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2022-11-03 02:37:22,518 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:22,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:22,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:37:22,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-11-03 02:37:22,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:22,635 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:22,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 32 [2022-11-03 02:37:22,780 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:22,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:23,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 7 treesize of output 3 [2022-11-03 02:37:23,536 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8)) (.cse5 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (+ (* (mod .cse5 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse0 (and (forall ((v_ArrVal_307 (Array Int Int))) (= 3 (select (store v_ArrVal_307 .cse1 (+ (select v_ArrVal_307 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_307) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4))) (not (= .cse5 0)))) (or (not .cse0) (= 3 (select (let ((.cse6 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse6 .cse1 (+ (select .cse6 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse6) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4)))))) is different from false [2022-11-03 02:37:23,868 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:23,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:37:23,883 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:23,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:23,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 116 treesize of output 104 [2022-11-03 02:37:23,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:23,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 63 treesize of output 55 [2022-11-03 02:37:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-03 02:37:23,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644941781] [2022-11-03 02:37:23,980 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083369327] [2022-11-03 02:37:23,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083369327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [86804972] [2022-11-03 02:37:23,982 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:37:23,983 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:23,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:23,983 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:23,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:24,138 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:24,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:24,274 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:24,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:24,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:24,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:24,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,511 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:24,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:24,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 127 [2022-11-03 02:37:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 113 treesize of output 63 [2022-11-03 02:37:24,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:24,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:24,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:24,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:24,851 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:24,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:24,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:24,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:24,929 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:24,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:24,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:25,053 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:25,630 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1061#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:25,630 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:25,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:25,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-03 02:37:25,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195208980] [2022-11-03 02:37:25,631 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:25,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-03 02:37:25,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:25,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-03 02:37:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=477, Unknown=1, NotChecked=44, Total=600 [2022-11-03 02:37:25,632 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:26,095 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-03 02:37:26,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 02:37:26,095 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:37:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:26,098 INFO L225 Difference]: With dead ends: 33 [2022-11-03 02:37:26,098 INFO L226 Difference]: Without dead ends: 23 [2022-11-03 02:37:26,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=125, Invalid=634, Unknown=1, NotChecked=52, Total=812 [2022-11-03 02:37:26,101 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:26,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 32 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 108 Invalid, 0 Unknown, 49 Unchecked, 0.2s Time] [2022-11-03 02:37:26,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-03 02:37:26,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-03 02:37:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:26,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-03 02:37:26,116 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 14 [2022-11-03 02:37:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:26,116 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-03 02:37:26,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-03 02:37:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:37:26,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:26,118 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:26,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:26,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:26,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:26,319 INFO L85 PathProgramCache]: Analyzing trace with hash -211311242, now seen corresponding path program 6 times [2022-11-03 02:37:26,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:26,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703830145] [2022-11-03 02:37:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:26,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:26,369 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:26,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [153236930] [2022-11-03 02:37:26,377 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:37:26,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:26,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:26,378 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:26,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 02:37:26,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:37:26,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:26,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 02:37:26,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:26,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:26,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:26,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:26,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703830145] [2022-11-03 02:37:26,622 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:26,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153236930] [2022-11-03 02:37:26,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153236930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:26,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1905854299] [2022-11-03 02:37:26,628 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:26,632 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:26,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:26,633 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:26,633 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:26,773 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:26,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:26,898 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:26,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:26,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:27,018 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:27,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,095 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:27,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:27,233 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:37:27,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 403 treesize of output 386 [2022-11-03 02:37:27,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:27,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:37:27,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:27,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,321 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:27,339 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:27,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:27,462 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:37:27,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:37:27,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 61 [2022-11-03 02:37:27,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:27,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-03 02:37:27,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:27,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:27,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:27,556 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:27,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:27,572 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:27,846 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1256#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:27,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:27,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:27,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-03 02:37:27,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287251193] [2022-11-03 02:37:27,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:27,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:37:27,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:37:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2022-11-03 02:37:27,848 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:28,142 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2022-11-03 02:37:28,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 02:37:28,142 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:37:28,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:28,143 INFO L225 Difference]: With dead ends: 68 [2022-11-03 02:37:28,143 INFO L226 Difference]: Without dead ends: 60 [2022-11-03 02:37:28,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2022-11-03 02:37:28,144 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 104 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:28,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 48 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:37:28,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-03 02:37:28,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 31. [2022-11-03 02:37:28,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:28,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-03 02:37:28,156 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 14 [2022-11-03 02:37:28,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:28,156 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-03 02:37:28,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:28,157 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-03 02:37:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:37:28,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:28,157 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:28,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:28,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:28,383 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash -149523490, now seen corresponding path program 2 times [2022-11-03 02:37:28,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409616910] [2022-11-03 02:37:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:28,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:28,410 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:28,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925821805] [2022-11-03 02:37:28,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:37:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:28,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:28,412 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:28,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 02:37:28,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:37:28,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:28,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 02:37:28,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:28,768 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:37:28,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:28,818 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:37:28,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:28,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409616910] [2022-11-03 02:37:28,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:28,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925821805] [2022-11-03 02:37:28,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925821805] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:28,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1911690867] [2022-11-03 02:37:28,820 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:37:28,820 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:28,820 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:28,821 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:28,821 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:28,932 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:28,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:29,041 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:29,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:29,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:29,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:29,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,282 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:29,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 127 [2022-11-03 02:37:29,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 113 treesize of output 63 [2022-11-03 02:37:29,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:29,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:29,622 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:37:29,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:37:29,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 159 treesize of output 145 [2022-11-03 02:37:29,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:29,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 93 [2022-11-03 02:37:29,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:29,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:29,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:29,720 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:29,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:29,816 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:30,091 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1514#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:30,091 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:30,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:30,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-11-03 02:37:30,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855553013] [2022-11-03 02:37:30,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:30,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:37:30,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:30,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:37:30,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2022-11-03 02:37:30,093 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:30,295 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2022-11-03 02:37:30,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 02:37:30,296 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:37:30,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:30,296 INFO L225 Difference]: With dead ends: 51 [2022-11-03 02:37:30,296 INFO L226 Difference]: Without dead ends: 44 [2022-11-03 02:37:30,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 9 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:37:30,298 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:30,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 36 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:37:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-03 02:37:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2022-11-03 02:37:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-03 02:37:30,308 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 15 [2022-11-03 02:37:30,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:30,308 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-03 02:37:30,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-03 02:37:30,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:37:30,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:30,309 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:30,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:30,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 02:37:30,510 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:30,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash -582184476, now seen corresponding path program 7 times [2022-11-03 02:37:30,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:30,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269877291] [2022-11-03 02:37:30,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:30,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:30,535 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:30,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915320923] [2022-11-03 02:37:30,535 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:37:30,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:30,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:30,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:30,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 02:37:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:31,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-03 02:37:31,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:31,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:31,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 58 [2022-11-03 02:37:31,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:31,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:31,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 116 [2022-11-03 02:37:31,400 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 58 [2022-11-03 02:37:31,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:31,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:31,407 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 116 [2022-11-03 02:37:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:31,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 02:37:31,513 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 02:37:31,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:31,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-03 02:37:31,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 30 treesize of output 28 [2022-11-03 02:37:32,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 182 treesize of output 178 [2022-11-03 02:37:32,299 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:32,300 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51 [2022-11-03 02:37:32,333 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:32,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:32,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 50 treesize of output 38 [2022-11-03 02:37:32,358 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 8 treesize of output 4 [2022-11-03 02:37:32,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 180 treesize of output 178 [2022-11-03 02:37:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 02:37:32,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:32,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269877291] [2022-11-03 02:37:32,428 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:32,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915320923] [2022-11-03 02:37:32,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915320923] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:32,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1135428607] [2022-11-03 02:37:32,430 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:32,430 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:32,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:32,430 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:32,431 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:32,550 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 02:37:32,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 64 [2022-11-03 02:37:32,675 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:32,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:32,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:32,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:32,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:32,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:32,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:32,857 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:32,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:33,048 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 82 [2022-11-03 02:37:33,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:33,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:37:33,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:33,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:33,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:33,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:33,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:33,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:33,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:33,252 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:37:33,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-03 02:37:33,274 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 102 treesize of output 90 [2022-11-03 02:37:33,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:33,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 63 [2022-11-03 02:37:33,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:33,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:33,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:33,364 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:33,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:33,396 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:33,910 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1754#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:33,911 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:33,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:33,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 18 [2022-11-03 02:37:33,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238523659] [2022-11-03 02:37:33,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:33,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 02:37:33,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:33,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 02:37:33,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2022-11-03 02:37:33,913 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:34,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:34,281 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2022-11-03 02:37:34,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-03 02:37:34,281 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-03 02:37:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:34,282 INFO L225 Difference]: With dead ends: 56 [2022-11-03 02:37:34,282 INFO L226 Difference]: Without dead ends: 54 [2022-11-03 02:37:34,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:37:34,283 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 58 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:34,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 54 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 125 Invalid, 0 Unknown, 53 Unchecked, 0.3s Time] [2022-11-03 02:37:34,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-03 02:37:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 34. [2022-11-03 02:37:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2022-11-03 02:37:34,296 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 15 [2022-11-03 02:37:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:34,296 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2022-11-03 02:37:34,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2022-11-03 02:37:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:37:34,297 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:34,297 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:34,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:34,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:34,502 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:34,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:34,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1236512951, now seen corresponding path program 3 times [2022-11-03 02:37:34,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:34,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912304597] [2022-11-03 02:37:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:34,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:34,525 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:34,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1514419323] [2022-11-03 02:37:34,526 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 02:37:34,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:34,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:34,527 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:34,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 02:37:34,981 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 02:37:34,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:34,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 02:37:34,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:34,995 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2022-11-03 02:37:35,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:35,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 118 treesize of output 107 [2022-11-03 02:37:35,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:35,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 188 [2022-11-03 02:37:35,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 99 [2022-11-03 02:37:35,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 34 [2022-11-03 02:37:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,207 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-03 02:37:35,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:35,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,258 INFO L356 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2022-11-03 02:37:35,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 42 [2022-11-03 02:37:35,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:35,300 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 02:37:35,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 62 treesize of output 56 [2022-11-03 02:37:35,490 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:35,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:35,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 7 treesize of output 3 [2022-11-03 02:37:36,116 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 32 treesize of output 28 [2022-11-03 02:37:36,623 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (.cse8 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8))) (let ((.cse6 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse1 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ (* 8 (mod .cse7 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (forall ((v_ArrVal_592 Int)) (= (select (store (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse0 .cse1 (+ (select .cse0 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4 v_ArrVal_592) .cse5) 3)) (not .cse6)) (or .cse6 (and (forall ((v_ArrVal_592 Int) (v_ArrVal_585 (Array Int Int))) (= 3 (select (store (store v_ArrVal_585 .cse1 (+ (select v_ArrVal_585 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_585) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4 v_ArrVal_592) .cse5))) (not (= .cse7 0))))))) is different from false [2022-11-03 02:37:37,118 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:37,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-03 02:37:38,941 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:38,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:37:39,025 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:39,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:39,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 346 treesize of output 330 [2022-11-03 02:37:39,168 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:39,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 97 [2022-11-03 02:37:39,319 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:39,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 874 treesize of output 840 [2022-11-03 02:37:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-03 02:37:39,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:39,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912304597] [2022-11-03 02:37:39,496 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:39,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514419323] [2022-11-03 02:37:39,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514419323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:39,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1579414836] [2022-11-03 02:37:39,498 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:37:39,498 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:39,498 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:39,499 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:39,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:39,609 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:39,610 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:39,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:37:39,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:39,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:39,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:39,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:39,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:39,802 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:39,802 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:39,914 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:37:39,914 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 403 treesize of output 386 [2022-11-03 02:37:39,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:39,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 36 [2022-11-03 02:37:40,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:40,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:40,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:40,082 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:40,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:40,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:40,118 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:40,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:40,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:40,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:40,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:40,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:40,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:40,170 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:40,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:40,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:40,901 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2019#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:40,902 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:40,902 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:40,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-03 02:37:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811421692] [2022-11-03 02:37:40,902 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:40,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:37:40,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:40,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:37:40,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=654, Unknown=8, NotChecked=52, Total=812 [2022-11-03 02:37:40,909 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:41,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:41,394 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2022-11-03 02:37:41,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:37:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-03 02:37:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:41,395 INFO L225 Difference]: With dead ends: 50 [2022-11-03 02:37:41,395 INFO L226 Difference]: Without dead ends: 48 [2022-11-03 02:37:41,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=133, Invalid=855, Unknown=8, NotChecked=60, Total=1056 [2022-11-03 02:37:41,397 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:41,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 35 Unchecked, 0.2s Time] [2022-11-03 02:37:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-03 02:37:41,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-03 02:37:41,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.255813953488372) internal successors, (54), 43 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-03 02:37:41,416 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 16 [2022-11-03 02:37:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:41,416 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-03 02:37:41,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-03 02:37:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:37:41,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:41,417 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:41,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:41,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:41,622 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:41,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:41,622 INFO L85 PathProgramCache]: Analyzing trace with hash -774659120, now seen corresponding path program 4 times [2022-11-03 02:37:41,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:41,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302092143] [2022-11-03 02:37:41,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:41,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:41,644 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:41,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [953010840] [2022-11-03 02:37:41,644 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 02:37:41,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:41,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:41,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:41,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 02:37:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:37:42,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-03 02:37:42,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:42,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2022-11-03 02:37:42,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:42,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:37:42,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:37:42,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 02:37:42,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 18 [2022-11-03 02:37:42,655 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 02:37:42,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 135 [2022-11-03 02:37:42,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:42,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 210 [2022-11-03 02:37:42,812 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 02:37:42,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 142 treesize of output 132 [2022-11-03 02:37:42,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,821 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 173 [2022-11-03 02:37:42,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 34 [2022-11-03 02:37:42,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:42,907 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:42,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 43 treesize of output 44 [2022-11-03 02:37:43,066 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:43,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:43,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 7 treesize of output 3 [2022-11-03 02:37:43,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 32 treesize of output 28 [2022-11-03 02:37:44,014 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 82 treesize of output 78 [2022-11-03 02:37:45,012 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse9 (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8))) (let ((.cse1 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ .cse9 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ (* 8 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ (* (mod .cse7 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or .cse0 (and (forall ((v_ArrVal_692 Int) (v_ArrVal_683 (Array Int Int)) (v_ArrVal_688 Int)) (= 3 (select (store (store (store v_ArrVal_683 .cse1 (+ (select v_ArrVal_683 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_683) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3))) .cse4 v_ArrVal_688) .cse5 v_ArrVal_692) .cse6))) (not (= .cse7 0)))) (or (forall ((v_ArrVal_692 Int) (v_ArrVal_688 Int)) (= 3 (select (store (store (let ((.cse8 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse8 .cse1 (+ (select .cse8 .cse2) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse8) |c_ULTIMATE.start_main_~a~0#1.base|) .cse3)))) .cse4 v_ArrVal_688) .cse5 v_ArrVal_692) .cse6))) (not .cse0))))) is different from false [2022-11-03 02:37:45,548 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:45,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 36 [2022-11-03 02:37:45,582 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:45,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-03 02:37:46,466 INFO L356 Elim1Store]: treesize reduction 47, result has 38.2 percent of original size [2022-11-03 02:37:46,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 50 [2022-11-03 02:37:46,522 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:46,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 43 [2022-11-03 02:37:48,512 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:48,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:37:48,519 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:48,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:37:48,609 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:48,625 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:48,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 58 [2022-11-03 02:37:48,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:48,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:48,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:48,669 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:48,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 87 treesize of output 64 [2022-11-03 02:37:48,687 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:48,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 411 treesize of output 411 [2022-11-03 02:37:48,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 397 treesize of output 391 [2022-11-03 02:37:48,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 392 treesize of output 384 [2022-11-03 02:37:48,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2022-11-03 02:37:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-03 02:37:48,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302092143] [2022-11-03 02:37:48,827 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953010840] [2022-11-03 02:37:48,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953010840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:48,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1524028171] [2022-11-03 02:37:48,829 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 02:37:48,829 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:48,829 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:48,829 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:48,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:48,959 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:48,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:48,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:37:49,009 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:49,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:49,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,178 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:49,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:49,279 INFO L356 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2022-11-03 02:37:49,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 403 treesize of output 386 [2022-11-03 02:37:49,304 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:49,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 65 [2022-11-03 02:37:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:49,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:49,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,467 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:49,515 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:37:49,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 158 treesize of output 196 [2022-11-03 02:37:49,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 159 treesize of output 145 [2022-11-03 02:37:49,555 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:37:49,555 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 145 treesize of output 122 [2022-11-03 02:37:49,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:49,600 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:49,604 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:49,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:49,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:49,729 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:50,471 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2317#(and (<= 0 ~N~0) (= |ULTIMATE.start_main_~a~0#1.offset| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 1) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:50,471 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:50,472 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:50,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 27 [2022-11-03 02:37:50,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970311989] [2022-11-03 02:37:50,472 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:50,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 02:37:50,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:50,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 02:37:50,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=872, Unknown=2, NotChecked=60, Total=1056 [2022-11-03 02:37:50,473 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:51,272 INFO L93 Difference]: Finished difference Result 70 states and 88 transitions. [2022-11-03 02:37:51,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 02:37:51,273 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:37:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:51,273 INFO L225 Difference]: With dead ends: 70 [2022-11-03 02:37:51,274 INFO L226 Difference]: Without dead ends: 68 [2022-11-03 02:37:51,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=158, Invalid=1104, Unknown=2, NotChecked=68, Total=1332 [2022-11-03 02:37:51,275 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 75 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:51,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 75 Unchecked, 0.2s Time] [2022-11-03 02:37:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-03 02:37:51,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-11-03 02:37:51,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 56 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 74 transitions. [2022-11-03 02:37:51,295 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 74 transitions. Word has length 18 [2022-11-03 02:37:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:51,295 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 74 transitions. [2022-11-03 02:37:51,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 74 transitions. [2022-11-03 02:37:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 02:37:51,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:51,296 INFO L195 NwaCegarLoop]: trace histogram [7, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:51,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-03 02:37:51,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 02:37:51,497 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:51,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1425021295, now seen corresponding path program 8 times [2022-11-03 02:37:51,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:51,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181526175] [2022-11-03 02:37:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:51,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:51,549 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:51,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [157247496] [2022-11-03 02:37:51,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:37:51,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:51,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:51,551 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:51,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 02:37:53,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-03 02:37:53,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:53,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 02:37:53,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:53,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:37:53,430 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:37:53,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:37:53,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181526175] [2022-11-03 02:37:53,431 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 02:37:53,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157247496] [2022-11-03 02:37:53,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157247496] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:37:53,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1273881783] [2022-11-03 02:37:53,432 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 02:37:53,432 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:37:53,432 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:37:53,433 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:37:53,433 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:37:53,551 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 02:37:53,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 44 treesize of output 77 [2022-11-03 02:37:53,565 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2022-11-03 02:37:53,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-03 02:37:53,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,738 INFO L356 Elim1Store]: treesize reduction 315, result has 10.8 percent of original size [2022-11-03 02:37:53,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 412 treesize of output 452 [2022-11-03 02:37:53,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 84 treesize of output 75 [2022-11-03 02:37:53,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:53,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 34 [2022-11-03 02:37:53,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 63 treesize of output 63 [2022-11-03 02:37:53,960 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:53,995 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:54,046 INFO L356 Elim1Store]: treesize reduction 344, result has 8.0 percent of original size [2022-11-03 02:37:54,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 199 [2022-11-03 02:37:54,097 INFO L356 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2022-11-03 02:37:54,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 155 [2022-11-03 02:37:54,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:54,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 138 treesize of output 88 [2022-11-03 02:37:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:54,122 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:54,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 63 [2022-11-03 02:37:54,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:54,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 93 [2022-11-03 02:37:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:54,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:54,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:54,194 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 02:37:54,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 93 [2022-11-03 02:37:54,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:54,236 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 02:37:54,865 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2670#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= (select (select |#memory_int| |ULTIMATE.start_main_~b~0#1.base|) (+ |ULTIMATE.start_main_~b~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 8))) |ULTIMATE.start_main_#t~mem13#1|) (= |ULTIMATE.start_main_~b~0#1.offset| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (= (ite (= (+ |ULTIMATE.start_main_~i~0#1| (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= |ULTIMATE.start_assume_abort_if_not_#in~cond#1| 1) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 02:37:54,865 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 02:37:54,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:37:54,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 23 [2022-11-03 02:37:54,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906865377] [2022-11-03 02:37:54,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 02:37:54,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 02:37:54,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:37:54,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 02:37:54,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:37:54,867 INFO L87 Difference]: Start difference. First operand 57 states and 74 transitions. Second operand has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:55,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:37:55,768 INFO L93 Difference]: Finished difference Result 188 states and 210 transitions. [2022-11-03 02:37:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 02:37:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 02:37:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:37:55,770 INFO L225 Difference]: With dead ends: 188 [2022-11-03 02:37:55,771 INFO L226 Difference]: Without dead ends: 168 [2022-11-03 02:37:55,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 15 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 850 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=524, Invalid=1926, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 02:37:55,772 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 256 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:37:55,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 132 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 02:37:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-03 02:37:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 76. [2022-11-03 02:37:55,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 96 transitions. [2022-11-03 02:37:55,807 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 96 transitions. Word has length 18 [2022-11-03 02:37:55,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:37:55,808 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 96 transitions. [2022-11-03 02:37:55,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:37:55,808 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 96 transitions. [2022-11-03 02:37:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 02:37:55,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:37:55,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 02:37:55,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:37:56,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:56,015 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:37:56,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:37:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash -972050403, now seen corresponding path program 5 times [2022-11-03 02:37:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:37:56,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271956568] [2022-11-03 02:37:56,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:37:56,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:37:56,033 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 02:37:56,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431603226] [2022-11-03 02:37:56,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 02:37:56,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:37:56,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:37:56,035 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:37:56,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06566e91-7d5e-4d9f-9d26-77a5e5df6812/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 02:37:56,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 02:37:56,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 02:37:56,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-03 02:37:56,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:37:56,495 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 10 treesize of output 8 [2022-11-03 02:37:56,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 02:37:56,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2022-11-03 02:37:56,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 74 treesize of output 65 [2022-11-03 02:37:56,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 133 [2022-11-03 02:37:56,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 02:37:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,761 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:37:56,769 INFO L356 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2022-11-03 02:37:56,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 44 [2022-11-03 02:37:56,916 INFO L356 Elim1Store]: treesize reduction 37, result has 21.3 percent of original size [2022-11-03 02:37:56,917 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 191 treesize of output 190 [2022-11-03 02:37:56,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:56,960 INFO L356 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2022-11-03 02:37:56,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 141 treesize of output 231 [2022-11-03 02:37:57,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 129 treesize of output 116 [2022-11-03 02:37:57,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 70 [2022-11-03 02:37:57,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 124 [2022-11-03 02:37:57,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:37:57,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 30 [2022-11-03 02:38:03,358 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 02:38:03,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 158 [2022-11-03 02:38:03,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:03,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:38:03,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:03,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 38 [2022-11-03 02:38:03,395 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:38:03,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 27 [2022-11-03 02:38:03,447 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:38:03,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:38:12,588 WARN L234 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:38:14,106 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse44 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse42 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse26 (<= .cse44 2147483647)) (.cse43 (* .cse44 8))) (let ((.cse17 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse1 (not .cse26)) (.cse3 (+ c_~N~0 4294967295)) (.cse7 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ c_~N~0 4294967294)) (.cse25 (+ .cse43 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse28 (* 8 .cse42)) (.cse0 (<= .cse42 2147483647))) (and (or .cse0 (let ((.cse18 (+ (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse28)) (select .cse16 (+ (- 34359738368) .cse28 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse1 (let ((.cse2 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (not .cse2) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse4 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse4) (< .cse4 .cse5) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse6 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse9) (< .cse9 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse2 (let ((.cse11 (store .cse16 .cse17 .cse18))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse10) (< .cse10 .cse5) (= 7 (select (store .cse11 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse13 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse12 (+ .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse11 (+ .cse13 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse14 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse14) (< .cse14 .cse5) (= 7 (select (store .cse11 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse15 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse12 (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse11 (+ .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))) (or (let ((.cse20 (store .cse16 .cse25 .cse18))) (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse19 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse19) (< .cse19 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 7 (select (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse22 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse20 (+ .cse22 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse23) (< .cse23 .cse5) (= 7 (select (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse20 (+ .cse24 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)))))))) .cse26)))) (or (let ((.cse35 (+ (select .cse16 (+ .cse28 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28))))) (and (or (let ((.cse30 (store .cse16 .cse17 .cse35))) (let ((.cse32 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse29) (= 7 (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse31 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse30 (+ .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse32 (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7)) (< .cse29 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse33 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse33) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse34 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7) (< .cse33 .cse5))))))) .cse1) (or (let ((.cse37 (store .cse16 .cse25 .cse35))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse36) (< .cse36 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse37 (+ .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse40 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse40) (= 7 (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse41 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse41 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse37 (+ .cse41 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< .cse40 .cse5))))))) .cse26))) (not .cse0)))))) (not (< 2 c_~N~0))) is different from false [2022-11-03 02:38:16,118 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse44 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse42 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse26 (<= .cse44 2147483647)) (.cse43 (* .cse44 8))) (let ((.cse17 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse1 (not .cse26)) (.cse3 (+ c_~N~0 4294967295)) (.cse7 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ c_~N~0 4294967294)) (.cse25 (+ .cse43 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse27 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse28 (* 8 .cse42)) (.cse0 (<= .cse42 2147483647))) (and (or .cse0 (let ((.cse18 (+ (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse28)) (select .cse16 (+ (- 34359738368) .cse28 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse1 (let ((.cse2 (= |c_ULTIMATE.start_main_~i~0#1| 0))) (and (or (not .cse2) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse4 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse4) (< .cse4 .cse5) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse6 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse6 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse9) (< .cse9 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or .cse2 (let ((.cse11 (store .cse16 .cse17 .cse18))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse10) (< .cse10 .cse5) (= 7 (select (store .cse11 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse13 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse12 (+ .cse13 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse11 (+ .cse13 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse14 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse14) (< .cse14 .cse5) (= 7 (select (store .cse11 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse15 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse12 (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse11 (+ .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))) (or (let ((.cse20 (store .cse16 .cse25 .cse18))) (let ((.cse21 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse20) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse19 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse19) (< .cse19 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 7 (select (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse22 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse20 (+ .cse22 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse23) (< .cse23 .cse5) (= 7 (select (store .cse20 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse21 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse20 (+ .cse24 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)))))))) .cse26)))) (or (let ((.cse35 (+ (select .cse16 (+ .cse28 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse27 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse28))))) (and (or (let ((.cse30 (store .cse16 .cse17 .cse35))) (let ((.cse32 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse29) (= 7 (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse31 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse30 (+ .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse32 (+ .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7)) (< .cse29 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse33 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse33) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse34 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse32 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse30 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7) (< .cse33 .cse5))))))) .cse1) (or (let ((.cse37 (store .cse16 .cse25 .cse35))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse37) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse36) (< .cse36 .cse5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse39 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse37 (+ .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 7)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse40 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse40) (= 7 (select (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse41 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse38 (+ .cse41 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse37 (+ .cse41 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7)) (< .cse40 .cse5))))))) .cse26))) (not .cse0)))))) (not (< 2 c_~N~0))) is different from true [2022-11-03 02:38:18,551 WARN L833 $PredicateComparison]: unable to prove that (or (let ((.cse49 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse52 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse53 (mod .cse49 4294967296))) (let ((.cse51 (* .cse53 8)) (.cse50 (* .cse52 8))) (let ((.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse13 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ c_~N~0 4294967295)) (.cse7 (+ c_~N~0 4294967294))) (and (or (not .cse0) (let ((.cse1 (let ((.cse10 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse10 .cse11 (+ (select .cse10 .cse12) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse10) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13)))))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse6 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse2 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse3 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse4)) (<= .cse5 .cse6) (< .cse6 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse1 (+ .cse8 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse9) (< .cse9 .cse7)))))))) (or .cse0 (let ((.cse22 (<= .cse53 2147483647))) (let ((.cse14 (<= .cse52 2147483647)) (.cse25 (+ .cse51 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse22))) (and (or (not .cse14) (and (or .cse15 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse16 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse16 (+ .cse17 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse18) (< .cse18 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse21 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (let ((.cse19 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse20 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse21) (< .cse21 .cse7)))))) (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse26 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse23 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse23) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse23 (+ .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse26) (< .cse26 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse27 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse27) (= (select (let ((.cse28 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse29 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse28 (+ .cse29 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))) .cse4) 7) (< .cse27 .cse7)))))))) (or .cse14 (let ((.cse33 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse34 (+ .cse50 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse30) (= (select (let ((.cse31 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse31 (+ .cse32 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4) 7) (< .cse30 .cse7)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse37 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse35 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse35 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse35 (+ .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse35) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse37) (< .cse37 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or (let ((.cse44 (= .cse49 0))) (and (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse38 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse38) (< .cse38 .cse7) (= (select (let ((.cse39 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse39 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse40 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse39 (+ .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse4) 7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse41 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse41 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse42 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse41) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse41 (+ .cse42 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse43) (< .cse43 .cse7))))) .cse44) (or (not .cse44) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse45 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse45) (< .cse45 .cse7) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse46 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse46 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse46 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4) 7)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse48 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse47 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse48) (< .cse48 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) .cse15))))))))))))) (not (< 2 c_~N~0))) is different from false [2022-11-03 02:38:20,565 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse49 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (let ((.cse52 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse53 (mod .cse49 4294967296))) (let ((.cse51 (* .cse53 8)) (.cse50 (* .cse52 8))) (let ((.cse0 (= |c_ULTIMATE.start_main_~i~0#1| 0)) (.cse13 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse51 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (+ c_~N~0 4294967295)) (.cse7 (+ c_~N~0 4294967294))) (and (or (not .cse0) (let ((.cse1 (let ((.cse10 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse10 .cse11 (+ (select .cse10 .cse12) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse10) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13)))))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse1) |c_ULTIMATE.start_main_~a~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse6 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse2 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse3 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse4)) (<= .cse5 .cse6) (< .cse6 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse9 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse1 (+ .cse8 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse9) (< .cse9 .cse7)))))))) (or .cse0 (let ((.cse22 (<= .cse53 2147483647))) (let ((.cse14 (<= .cse52 2147483647)) (.cse25 (+ .cse51 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse22))) (and (or (not .cse14) (and (or .cse15 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse18 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse16 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse16 (+ .cse17 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse18) (< .cse18 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse21 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (let ((.cse19 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse19 (+ .cse20 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse21) (< .cse21 .cse7)))))) (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse26 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse23 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse23) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse23 (+ .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse26) (< .cse26 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse27 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse27) (= (select (let ((.cse28 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse13) (select v_ArrVal_862 .cse12))))) (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse29 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse28 (+ .cse29 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))) .cse4) 7) (< .cse27 .cse7)))))))) (or .cse14 (let ((.cse33 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse34 (+ .cse50 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or .cse22 (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse30 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse30) (= (select (let ((.cse31 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse31 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse31 (+ .cse32 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4) 7) (< .cse30 .cse7)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse37 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse35 (store v_ArrVal_862 .cse25 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse35 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse35 (+ .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse35) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse37) (< .cse37 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))) (or (let ((.cse44 (= .cse49 0))) (and (or (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse38 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse38) (< .cse38 .cse7) (= (select (let ((.cse39 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse39 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse40 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse39 (+ .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) .cse4) 7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_862 (Array Int Int)) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse43 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse41 (store v_ArrVal_862 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_862) |c_ULTIMATE.start_main_~a~0#1.base|) .cse33) (select v_ArrVal_862 .cse34))))) (store .cse41 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse42 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse41) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse41 (+ .cse42 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse43) (< .cse43 .cse7))))) .cse44) (or (not .cse44) (and (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse45 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse45) (< .cse45 .cse7) (= (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse46 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse46 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select v_ArrVal_865 (+ .cse46 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4) 7)))) (forall ((v_ArrVal_865 (Array Int Int)) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse48 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (store v_ArrVal_865 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse47 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_865) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select v_ArrVal_865 (+ .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse48) (< .cse48 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) .cse15))))))))))))) (not (< 2 c_~N~0))) is different from true [2022-11-03 02:38:35,736 WARN L234 SmtUtils]: Spent 10.30s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 02:38:41,367 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse30 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse18 (<= .cse30 2147483647)) (.cse29 (* .cse30 8))) (let ((.cse17 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse0 (not .cse18)) (.cse8 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse10 (+ .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|)) (.cse1 (< |c_ULTIMATE.start_main_~i~0#1| 2))) (and (or .cse0 .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse2 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse3) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (< .cse3 .cse2) (= 7 (select (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse9 .cse10 v_ArrVal_860)))) (let ((.cse4 (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse7 .cse8 (+ 1 (select (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse4 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse5 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse4 (+ .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse11)))))) (or .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse12 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse12 .cse3) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 7 (select (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse9 .cse17 v_ArrVal_860)))) (let ((.cse13 (let ((.cse16 (store (select .cse14 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse16 .cse8 (+ 1 (select (select (store .cse14 |c_ULTIMATE.start_main_~b~0#1.base| .cse16) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse13 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse15 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse14 |c_ULTIMATE.start_main_~b~0#1.base| .cse13) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse15 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse13 (+ .cse15 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse11)) (< .cse3 .cse12)))) .cse18) (or .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse23 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 7 (select (let ((.cse21 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse9 .cse17 v_ArrVal_860)))) (let ((.cse19 (let ((.cse22 (store (select .cse21 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse22 .cse8 (+ 1 (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| .cse22) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse19 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse20 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse19 (+ .cse20 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse21 |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse11)) (< .cse23 .cse3) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (< .cse3 .cse23)))) .cse18) (or .cse0 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse24 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse24 .cse3) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= (select (let ((.cse26 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse9 .cse10 v_ArrVal_860)))) (let ((.cse25 (let ((.cse28 (store (select .cse26 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse28 .cse8 (+ 1 (select (select (store .cse26 |c_ULTIMATE.start_main_~b~0#1.base| .cse28) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse26 |c_ULTIMATE.start_main_~b~0#1.base| .cse25) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse25 (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse11) 7) (< .cse3 .cse24)))) .cse1))))) is different from true [2022-11-03 02:38:58,617 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse52 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse53 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse49 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse29 (<= .cse53 2147483647)) (.cse51 (* .cse53 8)) (.cse50 (* .cse52 8)) (.cse21 (<= .cse52 2147483647))) (let ((.cse20 (not .cse21)) (.cse12 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (not .cse29)) (.cse8 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse51 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse27 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse13 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse1 (< |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse30 (* 8 .cse49)) (.cse31 (<= .cse49 2147483647))) (and (or (let ((.cse11 (+ (select .cse9 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse30)) 2))) (and (or .cse0 .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse3 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse3) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (let ((.cse6 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse9 .cse10 .cse11) .cse12 v_ArrVal_860)))) (let ((.cse4 (let ((.cse7 (store (select .cse6 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse7 .cse8 (+ (select (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse7) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse4 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse5 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse4 (+ .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse6 |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) .cse13)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (< .cse3 .cse2))))) (or (let ((.cse19 (store .cse9 .cse28 .cse11))) (and (or (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse14 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse14) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (< .cse14 .cse2) (= (select (let ((.cse17 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse19 .cse12 v_ArrVal_860)))) (let ((.cse15 (let ((.cse18 (store (select .cse17 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse18 .cse8 (+ 1 (select (select (store .cse17 |c_ULTIMATE.start_main_~b~0#1.base| .cse18) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (store .cse15 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse16 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse15 (+ .cse16 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse17 |c_ULTIMATE.start_main_~b~0#1.base| .cse15) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse16 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) .cse13) 7)))) .cse1 .cse20) (or .cse21 .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse22 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse22) (= 7 (select (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse19 .cse27 v_ArrVal_860)))) (let ((.cse23 (let ((.cse26 (store (select .cse25 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse26 .cse8 (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| .cse26) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse23 (+ .cse24 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse25 |c_ULTIMATE.start_main_~b~0#1.base| .cse23) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) .cse13)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (< .cse22 .cse2))))))) .cse29))) .cse31) (or (let ((.cse43 (+ 2 (select .cse9 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse30))))) (and (or (let ((.cse37 (store .cse9 .cse10 .cse43))) (and (or .cse1 .cse20 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse32 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse32) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (let ((.cse34 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse37 .cse12 v_ArrVal_860)))) (let ((.cse33 (let ((.cse36 (store (select .cse34 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse36 .cse8 (+ (select (select (store .cse34 |c_ULTIMATE.start_main_~b~0#1.base| .cse36) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse33 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse35 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse34 |c_ULTIMATE.start_main_~b~0#1.base| .cse33) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse33 (+ .cse35 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse13)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (< .cse32 .cse2))))) (or .cse21 .cse1 (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse38 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< .cse2 .cse38) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 7 (select (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse37 .cse27 v_ArrVal_860)))) (let ((.cse39 (let ((.cse42 (store (select .cse40 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse42 .cse8 (+ (select (select (store .cse40 |c_ULTIMATE.start_main_~b~0#1.base| .cse42) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse39 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse41 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse40 |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse39 (+ .cse41 |c_ULTIMATE.start_main_~b~0#1.offset|))))))) .cse13)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (< .cse38 .cse2))))))) .cse0) (or (forall ((v_ArrVal_860 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse48 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store .cse9 .cse28 .cse43) .cse27 v_ArrVal_860)))) (let ((.cse44 (let ((.cse47 (store (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse47 .cse8 (+ (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (store .cse44 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse44 (+ .cse45 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| .cse44) |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))))) .cse13) 7) (< .cse2 .cse48) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (< .cse48 .cse2)))) .cse1 .cse29))) (not .cse31)))))) is different from true [2022-11-03 02:38:58,784 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:38:58,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 47 [2022-11-03 02:38:58,830 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:38:58,830 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 8 [2022-11-03 02:39:40,498 WARN L234 SmtUtils]: Spent 28.23s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-03 02:39:40,499 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 02:39:40,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 7 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 2454949 treesize of output 1253846