./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn2.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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/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 6c5e7a5b5183897e81f3d009c328161669eb0a8a3042b507053cc41bb75da51c --- 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 04:07:57,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:07:57,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:07:57,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:07:57,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:07:57,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:07:57,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:07:57,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:07:57,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:07:57,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:07:57,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:07:57,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:07:57,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:07:57,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:07:57,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:07:57,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:07:57,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:07:57,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:07:57,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:07:57,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:07:57,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:07:57,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:07:57,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:07:57,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:07:57,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:07:57,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:07:57,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:07:57,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:07:57,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:07:57,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:07:57,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:07:57,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:07:57,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:07:57,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:07:57,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:07:57,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:07:57,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:07:57,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:07:57,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:07:57,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:07:57,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:07:57,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 04:07:57,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:07:57,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:07:57,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:07:57,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:07:57,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:07:57,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:07:57,449 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:07:57,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:07:57,450 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:07:57,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:07:57,451 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:07:57,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:07:57,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:07:57,451 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:07:57,452 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:07:57,452 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:07:57,452 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:07:57,452 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:07:57,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:07:57,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:07:57,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:07:57,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:07:57,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:07:57,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 04:07:57,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:07:57,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 04:07:57,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:07:57,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 04:07:57,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:07:57,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 04:07:57,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:07:57,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:07:57,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:57,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:07:57,458 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:07:57,458 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:07:57,458 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 04:07:57,458 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:07:57,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:07:57,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 04:07:57,459 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:07:57,459 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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c5e7a5b5183897e81f3d009c328161669eb0a8a3042b507053cc41bb75da51c [2022-11-03 04:07:57,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:07:57,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:07:57,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:07:57,758 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:07:57,759 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:07:57,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-fpi/eqn2.c [2022-11-03 04:07:57,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/data/a22a05ab7/618d94d496344374b59c0395f69068fa/FLAGf9e3279f1 [2022-11-03 04:07:58,490 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:07:58,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/sv-benchmarks/c/array-fpi/eqn2.c [2022-11-03 04:07:58,502 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/data/a22a05ab7/618d94d496344374b59c0395f69068fa/FLAGf9e3279f1 [2022-11-03 04:07:58,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/data/a22a05ab7/618d94d496344374b59c0395f69068fa [2022-11-03 04:07:58,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:07:58,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:07:58,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:58,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:07:58,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:07:58,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:58" (1/1) ... [2022-11-03 04:07:58,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3924868c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:58, skipping insertion in model container [2022-11-03 04:07:58,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:07:58" (1/1) ... [2022-11-03 04:07:58,855 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:07:58,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:07:59,074 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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/sv-benchmarks/c/array-fpi/eqn2.c[587,600] [2022-11-03 04:07:59,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:59,130 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:07:59,145 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_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/sv-benchmarks/c/array-fpi/eqn2.c[587,600] [2022-11-03 04:07:59,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:07:59,168 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:07:59,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59 WrapperNode [2022-11-03 04:07:59,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:07:59,170 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:59,170 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:07:59,170 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:07:59,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,219 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-11-03 04:07:59,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:07:59,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:07:59,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:07:59,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:07:59,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,252 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:07:59,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:07:59,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:07:59,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:07:59,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (1/1) ... [2022-11-03 04:07:59,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:07:59,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:07:59,290 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:07:59,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:07:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:07:59,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:07:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:07:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:07:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:07:59,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:07:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:07:59,435 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:07:59,437 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:07:59,616 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:07:59,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:07:59,666 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 04:07:59,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:59 BoogieIcfgContainer [2022-11-03 04:07:59,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:07:59,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:07:59,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:07:59,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:07:59,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:07:58" (1/3) ... [2022-11-03 04:07:59,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576dc555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:59, skipping insertion in model container [2022-11-03 04:07:59,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:07:59" (2/3) ... [2022-11-03 04:07:59,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576dc555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:07:59, skipping insertion in model container [2022-11-03 04:07:59,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:07:59" (3/3) ... [2022-11-03 04:07:59,696 INFO L112 eAbstractionObserver]: Analyzing ICFG eqn2.c [2022-11-03 04:07:59,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:07:59,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 04:07:59,838 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:07:59,857 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;@12016d88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:07:59,857 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 04:07:59,870 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 04:07:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 04:07:59,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:07:59,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:07:59,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:07:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:07:59,895 INFO L85 PathProgramCache]: Analyzing trace with hash -735732333, now seen corresponding path program 1 times [2022-11-03 04:07:59,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:07:59,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320879481] [2022-11-03 04:07:59,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:07:59,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:00,065 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:00,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1853565190] [2022-11-03 04:08:00,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:00,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:00,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:00,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:00,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:08:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:00,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 04:08:00,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:00,420 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-03 04:08:00,423 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 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-03 04:08:00,448 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:00,477 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:00,594 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 38 treesize of output 11 [2022-11-03 04:08:00,601 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 04:08:00,704 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 04:08:00,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:00,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:00,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320879481] [2022-11-03 04:08:00,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:00,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853565190] [2022-11-03 04:08:00,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853565190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:00,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:00,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 04:08:00,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770918387] [2022-11-03 04:08:00,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:00,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:08:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:00,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:08:00,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:00,760 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:08:00,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:00,909 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2022-11-03 04:08:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:08:00,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:08:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:00,929 INFO L225 Difference]: With dead ends: 35 [2022-11-03 04:08:00,929 INFO L226 Difference]: Without dead ends: 20 [2022-11-03 04:08:00,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:08:00,940 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:00,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:00,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-03 04:08:00,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2022-11-03 04:08:00,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 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 04:08:00,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-03 04:08:00,986 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2022-11-03 04:08:00,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:00,987 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-03 04:08:00,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 04:08:00,987 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-03 04:08:00,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 04:08:00,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:00,989 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:01,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:01,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 04:08:01,202 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:01,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1337635293, now seen corresponding path program 1 times [2022-11-03 04:08:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:01,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832557958] [2022-11-03 04:08:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:01,237 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:01,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [57948641] [2022-11-03 04:08:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:01,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:01,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:01,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:01,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:08:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:01,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:08:01,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:01,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:01,389 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:01,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832557958] [2022-11-03 04:08:01,390 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:01,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57948641] [2022-11-03 04:08:01,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57948641] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:01,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:01,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:08:01,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895308832] [2022-11-03 04:08:01,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:01,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:08:01,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:01,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:08:01,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:08:01,394 INFO L87 Difference]: Start difference. First operand 13 states and 17 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 04:08:01,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:01,500 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-11-03 04:08:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:08:01,502 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 04:08:01,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:01,502 INFO L225 Difference]: With dead ends: 25 [2022-11-03 04:08:01,502 INFO L226 Difference]: Without dead ends: 19 [2022-11-03 04:08:01,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:08:01,504 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:01,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:01,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-03 04:08:01,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2022-11-03 04:08:01,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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 04:08:01,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-03 04:08:01,509 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2022-11-03 04:08:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:01,509 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-03 04:08:01,509 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 04:08:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-11-03 04:08:01,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 04:08:01,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:01,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:01,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:01,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-03 04:08:01,734 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:01,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:01,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1611921030, now seen corresponding path program 1 times [2022-11-03 04:08:01,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:01,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097425205] [2022-11-03 04:08:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:01,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:01,799 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:01,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300443483] [2022-11-03 04:08:01,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:01,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:01,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:01,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:01,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:08:01,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:01,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 04:08:01,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:01,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:01,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:01,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:01,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:01,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097425205] [2022-11-03 04:08:02,000 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:02,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300443483] [2022-11-03 04:08:02,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300443483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:02,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [928505260] [2022-11-03 04:08:02,060 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:02,060 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:02,065 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:02,071 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:02,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:02,394 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:02,396 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 04:08:02,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:02,524 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 04:08:02,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:08:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:02,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:02,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:02,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,114 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 04:08:03,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 516 treesize of output 532 [2022-11-03 04:08:03,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:03,491 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 04:08:03,524 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:03,945 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '238#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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|) (<= ~N~0 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) (<= |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 04:08:03,945 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:03,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:03,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-03 04:08:03,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121058637] [2022-11-03 04:08:03,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:03,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:03,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:03,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:03,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:08:03,948 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:04,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:04,067 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-03 04:08:04,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:08:04,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-03 04:08:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:04,068 INFO L225 Difference]: With dead ends: 29 [2022-11-03 04:08:04,068 INFO L226 Difference]: Without dead ends: 24 [2022-11-03 04:08:04,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:08:04,070 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:04,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-03 04:08:04,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2022-11-03 04:08:04,075 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 04:08:04,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-03 04:08:04,075 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2022-11-03 04:08:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:04,076 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-03 04:08:04,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:04,084 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-03 04:08:04,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 04:08:04,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:04,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:04,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:04,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:04,301 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:04,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:04,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1565286172, now seen corresponding path program 1 times [2022-11-03 04:08:04,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:04,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038008306] [2022-11-03 04:08:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:04,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:04,336 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:04,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649983514] [2022-11-03 04:08:04,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:04,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:04,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:04,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:04,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:08:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:04,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 04:08:04,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:04,492 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 04:08:04,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:04,499 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 14 treesize of output 14 [2022-11-03 04:08:04,502 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:04,518 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 14 treesize of output 16 [2022-11-03 04:08:04,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:04,547 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 04:08:04,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:04,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:04,824 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_114 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_114) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) is different from false [2022-11-03 04:08:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-03 04:08:04,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:04,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038008306] [2022-11-03 04:08:04,838 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:04,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649983514] [2022-11-03 04:08:04,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649983514] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:04,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [107386502] [2022-11-03 04:08:04,842 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:04,843 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:04,843 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:04,843 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:04,844 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:05,004 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:05,005 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 04:08:05,021 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 04:08:05,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:05,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:05,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,384 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,469 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:05,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 560 treesize of output 528 [2022-11-03 04:08:05,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,663 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 04:08:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,718 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:05,719 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 04:08:05,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,830 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:05,831 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 210 treesize of output 191 [2022-11-03 04:08:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:05,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:05,888 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:05,888 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 04:08:05,911 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:06,299 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '369#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:06,300 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:06,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:06,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-03 04:08:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730363038] [2022-11-03 04:08:06,300 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:06,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 04:08:06,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:06,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 04:08:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=171, Unknown=1, NotChecked=26, Total=240 [2022-11-03 04:08:06,302 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 04:08:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:06,447 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2022-11-03 04:08:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:08:06,448 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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) Word has length 9 [2022-11-03 04:08:06,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:06,448 INFO L225 Difference]: With dead ends: 32 [2022-11-03 04:08:06,448 INFO L226 Difference]: Without dead ends: 30 [2022-11-03 04:08:06,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=246, Unknown=1, NotChecked=32, Total=342 [2022-11-03 04:08:06,449 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:06,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 24 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 24 Unchecked, 0.1s Time] [2022-11-03 04:08:06,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-03 04:08:06,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 17. [2022-11-03 04:08:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2022-11-03 04:08:06,454 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2022-11-03 04:08:06,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:06,455 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2022-11-03 04:08:06,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 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 04:08:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-11-03 04:08:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 04:08:06,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:06,456 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:06,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:06,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:06,668 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:06,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:06,668 INFO L85 PathProgramCache]: Analyzing trace with hash -978676906, now seen corresponding path program 1 times [2022-11-03 04:08:06,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:06,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327825076] [2022-11-03 04:08:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:06,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:06,686 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:06,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856421941] [2022-11-03 04:08:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:06,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:06,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:06,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:06,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:08:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:06,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:08:06,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:06,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:06,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 04:08:06,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:06,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327825076] [2022-11-03 04:08:06,812 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:06,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856421941] [2022-11-03 04:08:06,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856421941] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:06,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:06,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:08:06,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571420060] [2022-11-03 04:08:06,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:06,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 04:08:06,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 04:08:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:08:06,815 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:06,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:06,909 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-03 04:08:06,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:08:06,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 04:08:06,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:06,911 INFO L225 Difference]: With dead ends: 31 [2022-11-03 04:08:06,911 INFO L226 Difference]: Without dead ends: 21 [2022-11-03 04:08:06,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:08:06,913 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:06,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 12 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-03 04:08:06,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2022-11-03 04:08:06,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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 04:08:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2022-11-03 04:08:06,919 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 10 [2022-11-03 04:08:06,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:06,919 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2022-11-03 04:08:06,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:06,920 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2022-11-03 04:08:06,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 04:08:06,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:06,921 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:06,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-11-03 04:08:07,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:07,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:07,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1274461626, now seen corresponding path program 2 times [2022-11-03 04:08:07,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:07,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289271115] [2022-11-03 04:08:07,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:07,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:07,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1297959895] [2022-11-03 04:08:07,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:08:07,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:07,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:07,184 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:07,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:08:07,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:08:07,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:07,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:08:07,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:07,362 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 04:08:07,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:07,395 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 04:08:07,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:07,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289271115] [2022-11-03 04:08:07,395 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:07,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297959895] [2022-11-03 04:08:07,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297959895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:07,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [824525836] [2022-11-03 04:08:07,398 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:07,398 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:07,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:07,398 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:07,399 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:07,552 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:07,553 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 04:08:07,588 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 04:08:07,613 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:07,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:07,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:07,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:07,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:07,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:07,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,005 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:08,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:08:08,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,121 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 04:08:08,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,142 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:08,142 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 23 treesize of output 26 [2022-11-03 04:08:08,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:08,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:08,317 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 04:08:08,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 182 [2022-11-03 04:08:08,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:08,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:08,396 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:08,397 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 04:08:08,419 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:08,758 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '621#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:08,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:08,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:08,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-03 04:08:08,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125262219] [2022-11-03 04:08:08,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:08,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:08,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:08,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:08,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:08:08,760 INFO L87 Difference]: Start difference. First operand 16 states and 20 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 04:08:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:08,858 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-03 04:08:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 04:08:08,859 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 04:08:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:08,859 INFO L225 Difference]: With dead ends: 33 [2022-11-03 04:08:08,860 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 04:08:08,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:08:08,861 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:08,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 18 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:08,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 04:08:08,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 16. [2022-11-03 04:08:08,865 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 04:08:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-03 04:08:08,865 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2022-11-03 04:08:08,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:08,865 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-03 04:08:08,865 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 04:08:08,866 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-03 04:08:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 04:08:08,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:08,866 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:08,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:09,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-03 04:08:09,072 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1361538371, now seen corresponding path program 3 times [2022-11-03 04:08:09,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:09,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819561584] [2022-11-03 04:08:09,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:09,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:09,116 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:09,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136633044] [2022-11-03 04:08:09,116 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:08:09,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:09,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:09,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:09,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 04:08:09,196 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:08:09,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:09,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 04:08:09,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:09,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:09,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:09,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:09,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819561584] [2022-11-03 04:08:09,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:09,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136633044] [2022-11-03 04:08:09,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136633044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:09,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [948670373] [2022-11-03 04:08:09,282 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:09,282 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:09,282 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:09,283 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:09,283 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:09,425 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:09,425 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 04:08:09,453 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 04:08:09,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:09,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:09,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,547 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:09,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:09,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,819 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:09,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:08:09,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,969 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 04:08:09,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:09,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:10,002 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:10,003 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 04:08:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,064 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,074 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:10,088 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:10,089 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 210 treesize of output 191 [2022-11-03 04:08:10,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:10,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:10,130 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:10,130 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 04:08:10,146 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:10,506 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '765#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:10,506 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:10,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:10,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-03 04:08:10,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410664022] [2022-11-03 04:08:10,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:10,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:08:10,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:10,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:08:10,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:08:10,508 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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 04:08:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:10,699 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-11-03 04:08:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 04:08:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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 04:08:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:10,701 INFO L225 Difference]: With dead ends: 37 [2022-11-03 04:08:10,701 INFO L226 Difference]: Without dead ends: 32 [2022-11-03 04:08:10,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-11-03 04:08:10,702 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:10,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 31 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:10,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-03 04:08:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2022-11-03 04:08:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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 04:08:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2022-11-03 04:08:10,708 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2022-11-03 04:08:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:10,708 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2022-11-03 04:08:10,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 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 04:08:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2022-11-03 04:08:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 04:08:10,709 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:10,709 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:10,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:10,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 04:08:10,910 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:10,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:10,911 INFO L85 PathProgramCache]: Analyzing trace with hash -746752909, now seen corresponding path program 4 times [2022-11-03 04:08:10,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:10,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888610352] [2022-11-03 04:08:10,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:10,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:10,955 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:10,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1424176172] [2022-11-03 04:08:10,956 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 04:08:10,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:10,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:10,957 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:10,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 04:08:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:11,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 04:08:11,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:11,300 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-03 04:08:11,301 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 2 case distinctions, treesize of input 36 treesize of output 74 [2022-11-03 04:08:11,315 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:11,324 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:11,352 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 38 treesize of output 11 [2022-11-03 04:08:11,357 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 04:08:11,389 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 04:08:11,409 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 14 treesize of output 16 [2022-11-03 04:08:11,431 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 14 treesize of output 16 [2022-11-03 04:08:11,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:11,471 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 04:08:11,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:11,492 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 04:08:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:11,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:11,857 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_252 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_252) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) is different from false [2022-11-03 04:08:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 2 not checked. [2022-11-03 04:08:11,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:11,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888610352] [2022-11-03 04:08:11,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:11,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424176172] [2022-11-03 04:08:11,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424176172] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:11,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1688532160] [2022-11-03 04:08:11,872 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:11,873 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:11,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:11,882 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:11,882 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:12,032 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:08:12,033 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 04:08:12,133 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:08:12,134 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:08:12,277 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:12,277 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 04:08:12,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,603 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:12,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:08:12,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,729 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 04:08:12,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,761 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:12,761 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 04:08:12,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,865 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:12,865 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 210 treesize of output 191 [2022-11-03 04:08:12,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:12,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:12,916 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:12,917 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 04:08:12,936 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:13,292 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '930#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:13,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:13,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:13,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2022-11-03 04:08:13,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764457436] [2022-11-03 04:08:13,293 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:13,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:08:13,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:13,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:08:13,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=248, Unknown=1, NotChecked=32, Total=342 [2022-11-03 04:08:13,294 INFO L87 Difference]: Start difference. First operand 17 states and 20 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 04:08:13,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:13,639 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2022-11-03 04:08:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 04:08:13,641 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 11 [2022-11-03 04:08:13,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:13,641 INFO L225 Difference]: With dead ends: 45 [2022-11-03 04:08:13,641 INFO L226 Difference]: Without dead ends: 43 [2022-11-03 04:08:13,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=526, Unknown=1, NotChecked=48, Total=702 [2022-11-03 04:08:13,643 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 58 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:13,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 26 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 51 Invalid, 0 Unknown, 46 Unchecked, 0.1s Time] [2022-11-03 04:08:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-03 04:08:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 19. [2022-11-03 04:08:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 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 04:08:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-11-03 04:08:13,655 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 11 [2022-11-03 04:08:13,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:13,656 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-11-03 04:08:13,656 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 04:08:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-03 04:08:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 04:08:13,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:13,657 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:13,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:13,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:13,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:13,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash 985561389, now seen corresponding path program 1 times [2022-11-03 04:08:13,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:13,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451099738] [2022-11-03 04:08:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:13,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:13,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:13,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2048997853] [2022-11-03 04:08:13,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:13,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:13,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:13,887 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:13,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 04:08:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:14,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-03 04:08:14,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:14,100 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 04:08:14,100 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-03 04:08:14,132 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-03 04:08:14,132 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 46 treesize of output 71 [2022-11-03 04:08:14,141 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:14,164 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:14,193 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 16 treesize of output 5 [2022-11-03 04:08:14,199 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 04:08:14,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 51 [2022-11-03 04:08:14,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:14,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 treesize of output 3 [2022-11-03 04:08:14,294 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 04:08:14,335 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 04:08:14,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:14,389 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:14,390 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 28 treesize of output 30 [2022-11-03 04:08:14,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:14,437 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:14,438 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 04:08:14,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:14,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:15,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:15,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451099738] [2022-11-03 04:08:15,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:15,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048997853] [2022-11-03 04:08:15,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048997853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:15,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1530112605] [2022-11-03 04:08:15,183 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:08:15,183 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:15,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:15,184 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:15,184 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:15,284 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:08:15,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:08:15,421 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:15,422 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 04:08:15,446 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 04:08:15,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:08:15,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:15,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:15,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:15,804 INFO L356 Elim1Store]: treesize reduction 246, result has 10.5 percent of original size [2022-11-03 04:08:15,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 524 treesize of output 529 [2022-11-03 04:08:16,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,046 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 04:08:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:16,070 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:16,070 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 04:08:16,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,121 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:16,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:16,144 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:16,145 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 210 treesize of output 191 [2022-11-03 04:08:16,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:16,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:16,189 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:16,190 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 04:08:16,334 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:16,970 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1128#(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 04:08:16,971 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:16,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:16,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2022-11-03 04:08:16,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032000213] [2022-11-03 04:08:16,971 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:16,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:08:16,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:16,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:08:16,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-11-03 04:08:16,972 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:17,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:17,493 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2022-11-03 04:08:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:08:17,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 04:08:17,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:17,496 INFO L225 Difference]: With dead ends: 33 [2022-11-03 04:08:17,496 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 04:08:17,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=111, Invalid=489, Unknown=0, NotChecked=0, Total=600 [2022-11-03 04:08:17,497 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 53 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:17,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 32 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 75 Invalid, 0 Unknown, 29 Unchecked, 0.2s Time] [2022-11-03 04:08:17,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 04:08:17,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 22. [2022-11-03 04:08:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 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 04:08:17,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2022-11-03 04:08:17,504 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 12 [2022-11-03 04:08:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:17,505 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2022-11-03 04:08:17,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:17,505 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-03 04:08:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 04:08:17,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:17,506 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:17,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:17,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:17,707 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:17,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:17,707 INFO L85 PathProgramCache]: Analyzing trace with hash -522629517, now seen corresponding path program 5 times [2022-11-03 04:08:17,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:17,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106600450] [2022-11-03 04:08:17,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:17,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:17,737 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:17,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [198839154] [2022-11-03 04:08:17,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:08:17,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:17,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:17,739 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:17,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 04:08:17,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 04:08:17,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:17,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 04:08:17,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:08:18,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:08:18,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:18,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106600450] [2022-11-03 04:08:18,127 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:18,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198839154] [2022-11-03 04:08:18,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198839154] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:18,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1032779043] [2022-11-03 04:08:18,134 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:18,134 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:18,134 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:18,135 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:18,135 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:18,301 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:08:18,301 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 04:08:18,422 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:18,422 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 04:08:18,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:18,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:18,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:18,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:18,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:18,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,803 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:18,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 560 treesize of output 528 [2022-11-03 04:08:18,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,923 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 04:08:18,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:18,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:18,951 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:18,951 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 04:08:18,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:19,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:19,048 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:19,048 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 210 treesize of output 191 [2022-11-03 04:08:19,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:19,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:19,095 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:19,095 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 04:08:19,112 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:19,435 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1314#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:19,435 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:19,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:19,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-03 04:08:19,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244204636] [2022-11-03 04:08:19,436 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:19,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 04:08:19,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:19,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 04:08:19,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-03 04:08:19,437 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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 04:08:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:19,730 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2022-11-03 04:08:19,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:08:19,731 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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) Word has length 13 [2022-11-03 04:08:19,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:19,733 INFO L225 Difference]: With dead ends: 54 [2022-11-03 04:08:19,733 INFO L226 Difference]: Without dead ends: 36 [2022-11-03 04:08:19,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:08:19,735 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:19,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 39 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:08:19,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-03 04:08:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 21. [2022-11-03 04:08:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:19,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-03 04:08:19,744 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 13 [2022-11-03 04:08:19,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:19,745 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-03 04:08:19,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 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 04:08:19,745 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-03 04:08:19,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 04:08:19,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:19,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:19,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:19,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 04:08:19,953 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:19,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:19,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1419825270, now seen corresponding path program 2 times [2022-11-03 04:08:19,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:19,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842516375] [2022-11-03 04:08:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:19,984 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:19,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1634746564] [2022-11-03 04:08:19,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:08:19,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:19,999 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:20,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 04:08:20,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 04:08:20,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:20,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-03 04:08:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:20,321 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 04:08:20,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,330 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-03 04:08:20,336 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:20,340 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 04:08:20,395 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:08:20,395 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 72 treesize of output 68 [2022-11-03 04:08:20,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,402 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 04:08:20,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,439 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 77 treesize of output 22 [2022-11-03 04:08:20,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,489 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:20,490 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 28 treesize of output 30 [2022-11-03 04:08:20,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,537 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:20,537 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 04:08:20,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:20,575 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:20,575 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 45 treesize of output 44 [2022-11-03 04:08:20,718 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 04:08:20,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:23,500 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 04:08:23,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:23,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842516375] [2022-11-03 04:08:23,501 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:23,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1634746564] [2022-11-03 04:08:23,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1634746564] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:23,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1143593821] [2022-11-03 04:08:23,503 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:08:23,504 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:23,504 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:23,504 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:23,504 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:23,645 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:08:23,645 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 04:08:23,758 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:08:23,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:08:23,923 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:23,924 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 04:08:23,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:23,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,174 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,260 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:24,261 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:08:24,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,381 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 04:08:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,406 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:24,407 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 04:08:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,506 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:24,507 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 210 treesize of output 191 [2022-11-03 04:08:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:24,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:24,562 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:24,563 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 04:08:24,715 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:25,416 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1546#(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 04:08:25,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:25,416 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:25,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2022-11-03 04:08:25,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175258672] [2022-11-03 04:08:25,416 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:25,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 04:08:25,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 04:08:25,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2022-11-03 04:08:25,418 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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 04:08:25,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:25,802 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-03 04:08:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 04:08:25,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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 04:08:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:25,805 INFO L225 Difference]: With dead ends: 36 [2022-11-03 04:08:25,805 INFO L226 Difference]: Without dead ends: 34 [2022-11-03 04:08:25,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2022-11-03 04:08:25,808 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:25,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-03 04:08:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-03 04:08:25,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-11-03 04:08:25,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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 04:08:25,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-11-03 04:08:25,829 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2022-11-03 04:08:25,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:25,829 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-03 04:08:25,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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 04:08:25,833 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-11-03 04:08:25,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 04:08:25,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:25,834 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:25,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:26,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 04:08:26,041 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:26,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 916648218, now seen corresponding path program 6 times [2022-11-03 04:08:26,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:26,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169413443] [2022-11-03 04:08:26,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:26,064 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:26,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520875811] [2022-11-03 04:08:26,065 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:08:26,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:26,066 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:26,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 04:08:26,165 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:08:26,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:26,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 04:08:26,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:26,277 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 04:08:26,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:26,342 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 04:08:26,342 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:26,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169413443] [2022-11-03 04:08:26,343 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:26,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520875811] [2022-11-03 04:08:26,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520875811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:26,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1878055170] [2022-11-03 04:08:26,345 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:26,345 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:26,345 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:26,345 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:26,346 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:26,433 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:08:26,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:08:26,583 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:26,583 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 04:08:26,603 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 04:08:26,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:08:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,785 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:26,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:26,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:26,904 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 04:08:26,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 516 treesize of output 532 [2022-11-03 04:08:27,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,085 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 04:08:27,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,104 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:27,108 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:27,108 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 04:08:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:27,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:27,204 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:27,204 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 210 treesize of output 191 [2022-11-03 04:08:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:27,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:27,250 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:27,251 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 04:08:27,278 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:27,639 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1757#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:27,639 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:27,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:27,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-03 04:08:27,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216646265] [2022-11-03 04:08:27,639 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:27,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:08:27,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:27,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:08:27,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-11-03 04:08:27,640 INFO L87 Difference]: Start difference. First operand 28 states and 35 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 04:08:28,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:28,013 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-03 04:08:28,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 04:08:28,014 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 04:08:28,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:28,015 INFO L225 Difference]: With dead ends: 71 [2022-11-03 04:08:28,015 INFO L226 Difference]: Without dead ends: 63 [2022-11-03 04:08:28,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2022-11-03 04:08:28,016 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 56 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:28,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 69 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:08:28,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-03 04:08:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 39. [2022-11-03 04:08:28,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.236842105263158) internal successors, (47), 38 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2022-11-03 04:08:28,029 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 14 [2022-11-03 04:08:28,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:28,030 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-11-03 04:08:28,030 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 04:08:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-11-03 04:08:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 04:08:28,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:28,031 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:28,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:28,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:28,258 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:28,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1710382253, now seen corresponding path program 7 times [2022-11-03 04:08:28,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:28,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535197891] [2022-11-03 04:08:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:28,283 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:28,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [96537358] [2022-11-03 04:08:28,283 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 04:08:28,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:28,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:28,284 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:28,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 04:08:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:29,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-03 04:08:29,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:29,439 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 04:08:29,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,460 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 14 treesize of output 14 [2022-11-03 04:08:29,465 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:29,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:08:29,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:08:29,526 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 14 treesize of output 16 [2022-11-03 04:08:29,549 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 14 treesize of output 16 [2022-11-03 04:08:29,598 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 04:08:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,606 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 04:08:29,642 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 04:08:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,647 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 04:08:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,687 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 04:08:29,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:29,709 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 04:08:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:29,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:30,626 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_511 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1)) is different from false [2022-11-03 04:08:30,644 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 4 not checked. [2022-11-03 04:08:30,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535197891] [2022-11-03 04:08:30,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96537358] [2022-11-03 04:08:30,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96537358] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:30,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1935951657] [2022-11-03 04:08:30,647 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:08:30,647 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:30,648 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:30,648 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:30,648 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:30,785 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:30,786 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 04:08:30,806 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:30,826 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 04:08:30,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:08:30,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:30,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,142 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 04:08:31,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 516 treesize of output 532 [2022-11-03 04:08:31,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,334 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 04:08:31,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,357 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,361 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:31,362 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 04:08:31,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,462 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:31,463 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 210 treesize of output 191 [2022-11-03 04:08:31,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:31,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:31,514 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:31,514 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 04:08:31,534 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:31,879 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2053#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:08:31,879 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:31,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:31,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2022-11-03 04:08:31,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314842217] [2022-11-03 04:08:31,879 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:31,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:08:31,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:31,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:08:31,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=441, Unknown=1, NotChecked=44, Total=600 [2022-11-03 04:08:31,881 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 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 04:08:32,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:32,564 INFO L93 Difference]: Finished difference Result 103 states and 116 transitions. [2022-11-03 04:08:32,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 04:08:32,565 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 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 15 [2022-11-03 04:08:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:32,566 INFO L225 Difference]: With dead ends: 103 [2022-11-03 04:08:32,566 INFO L226 Difference]: Without dead ends: 101 [2022-11-03 04:08:32,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=190, Invalid=805, Unknown=1, NotChecked=60, Total=1056 [2022-11-03 04:08:32,568 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 122 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:32,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 112 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 201 Invalid, 0 Unknown, 101 Unchecked, 0.4s Time] [2022-11-03 04:08:32,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-03 04:08:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 43. [2022-11-03 04:08:32,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 42 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:32,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-03 04:08:32,589 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 15 [2022-11-03 04:08:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:32,589 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-03 04:08:32,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.25) internal successors, (25), 20 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 04:08:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-11-03 04:08:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 04:08:32,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:32,590 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:32,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-03 04:08:32,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 04:08:32,797 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:32,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:32,798 INFO L85 PathProgramCache]: Analyzing trace with hash 724259981, now seen corresponding path program 3 times [2022-11-03 04:08:32,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:32,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321602202] [2022-11-03 04:08:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:32,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:32,821 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:32,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [138306882] [2022-11-03 04:08:32,822 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:08:32,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:32,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:32,823 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:32,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 04:08:33,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:08:33,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:08:33,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-03 04:08:33,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:33,389 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 04:08:33,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,400 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-03 04:08:33,407 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:33,411 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 04:08:33,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,445 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:33,445 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 28 treesize of output 30 [2022-11-03 04:08:33,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,479 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:33,479 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 28 treesize of output 30 [2022-11-03 04:08:33,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,504 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:33,504 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 28 treesize of output 30 [2022-11-03 04:08:33,559 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:08:33,559 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 04:08:33,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:33,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,569 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 04:08:33,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,593 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 101 [2022-11-03 04:08:33,701 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:08:33,702 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 119 treesize of output 109 [2022-11-03 04:08:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,715 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 100 treesize of output 173 [2022-11-03 04:08:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,748 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 130 treesize of output 65 [2022-11-03 04:08:33,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:33,824 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:33,825 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 55 treesize of output 46 [2022-11-03 04:08:34,034 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 04:08:34,034 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 34 [2022-11-03 04:08:34,058 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 04:08:34,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:43,411 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 04:08:43,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:43,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321602202] [2022-11-03 04:08:43,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:08:43,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138306882] [2022-11-03 04:08:43,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138306882] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:43,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [880825313] [2022-11-03 04:08:43,414 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:08:43,414 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:43,414 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:43,414 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:43,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:43,590 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:08:43,591 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 04:08:43,735 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:08:43,735 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 04:08:43,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:08:43,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:08:43,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:43,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:43,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:43,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,065 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:08:44,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:08:44,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,176 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 04:08:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:44,199 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:44,199 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 04:08:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:44,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:44,281 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:44,282 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 210 treesize of output 191 [2022-11-03 04:08:44,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:44,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:44,333 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:44,333 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 04:08:44,455 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:45,177 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2407#(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 04:08:45,177 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:08:45,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:08:45,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2022-11-03 04:08:45,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943832425] [2022-11-03 04:08:45,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:08:45,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 04:08:45,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:45,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 04:08:45,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2022-11-03 04:08:45,180 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 04:08:47,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:47,079 INFO L93 Difference]: Finished difference Result 66 states and 83 transitions. [2022-11-03 04:08:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 04:08:47,081 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 04:08:47,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:47,083 INFO L225 Difference]: With dead ends: 66 [2022-11-03 04:08:47,083 INFO L226 Difference]: Without dead ends: 64 [2022-11-03 04:08:47,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=150, Invalid=906, Unknown=0, NotChecked=0, Total=1056 [2022-11-03 04:08:47,084 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 54 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:47,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 31 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 54 Unchecked, 0.1s Time] [2022-11-03 04:08:47,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-03 04:08:47,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 52. [2022-11-03 04:08:47,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 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 04:08:47,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2022-11-03 04:08:47,109 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 16 [2022-11-03 04:08:47,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:47,110 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2022-11-03 04:08:47,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 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 04:08:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2022-11-03 04:08:47,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 04:08:47,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:47,111 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:47,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:47,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:47,311 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:08:47,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:47,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1181831571, now seen corresponding path program 4 times [2022-11-03 04:08:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:47,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370697289] [2022-11-03 04:08:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:47,328 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:08:47,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1037003622] [2022-11-03 04:08:47,329 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 04:08:47,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:47,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:47,331 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:47,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 04:08:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:47,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 50 conjunts are in the unsatisfiable core [2022-11-03 04:08:47,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:47,734 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 04:08:47,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,741 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-03 04:08:47,744 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 20 treesize of output 20 [2022-11-03 04:08:47,749 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:47,754 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:08:47,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,786 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:47,787 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 34 treesize of output 32 [2022-11-03 04:08:47,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,826 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:08:47,826 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 04:08:47,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,910 INFO L356 Elim1Store]: treesize reduction 29, result has 23.7 percent of original size [2022-11-03 04:08:47,910 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 53 treesize of output 46 [2022-11-03 04:08:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,972 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:08:47,972 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 80 treesize of output 60 [2022-11-03 04:08:48,346 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-03 04:08:48,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 85 treesize of output 45 [2022-11-03 04:08:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:48,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:04,196 WARN L234 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 139 DAG size of output: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:04,216 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:04,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:04,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370697289] [2022-11-03 04:09:04,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:09:04,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037003622] [2022-11-03 04:09:04,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037003622] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:09:04,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1492438862] [2022-11-03 04:09:04,218 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:09:04,218 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:09:04,219 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:09:04,219 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:09:04,219 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:09:04,301 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:09:04,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:09:04,436 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:09:04,437 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 04:09:04,455 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 04:09:04,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:09:04,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:04,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:04,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,769 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:09:04,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:09:04,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,877 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 04:09:04,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,896 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:04,896 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 23 treesize of output 26 [2022-11-03 04:09:04,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:04,957 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:04,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:05,042 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 04:09:05,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 182 [2022-11-03 04:09:05,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:05,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:05,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:05,099 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:05,099 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 04:09:05,215 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:06,477 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2734#(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 04:09:06,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:06,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:09:06,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-03 04:09:06,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194052374] [2022-11-03 04:09:06,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:06,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 04:09:06,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:06,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 04:09:06,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=611, Unknown=1, NotChecked=0, Total=702 [2022-11-03 04:09:06,479 INFO L87 Difference]: Start difference. First operand 52 states and 68 transitions. Second operand has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 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 04:09:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:08,007 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2022-11-03 04:09:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 04:09:08,007 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 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) Word has length 17 [2022-11-03 04:09:08,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:08,008 INFO L225 Difference]: With dead ends: 69 [2022-11-03 04:09:08,008 INFO L226 Difference]: Without dead ends: 49 [2022-11-03 04:09:08,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=125, Invalid=804, Unknown=1, NotChecked=0, Total=930 [2022-11-03 04:09:08,010 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:08,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 17 Unchecked, 0.7s Time] [2022-11-03 04:09:08,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-03 04:09:08,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2022-11-03 04:09:08,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 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 04:09:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-11-03 04:09:08,031 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 17 [2022-11-03 04:09:08,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:08,032 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-11-03 04:09:08,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 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 04:09:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-11-03 04:09:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 04:09:08,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:08,033 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:08,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:08,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:08,246 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:09:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:08,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1499444630, now seen corresponding path program 5 times [2022-11-03 04:09:08,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:08,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285251873] [2022-11-03 04:09:08,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:08,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:08,270 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:09:08,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [945082248] [2022-11-03 04:09:08,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:09:08,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:08,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:08,272 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:08,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 04:09:09,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 04:09:09,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:09:09,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 70 conjunts are in the unsatisfiable core [2022-11-03 04:09:09,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:09,955 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 04:09:09,956 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-03 04:09:09,994 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-03 04:09:09,995 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 46 treesize of output 71 [2022-11-03 04:09:10,005 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:09:10,039 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 17 treesize of output 6 [2022-11-03 04:09:10,072 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:09:10,088 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 79 [2022-11-03 04:09:10,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:10,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:10,138 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2022-11-03 04:09:10,155 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 9 treesize of output 7 [2022-11-03 04:09:10,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:10,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:10,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 34 [2022-11-03 04:09:10,263 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 04:09:10,378 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:10,379 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 87 treesize of output 83 [2022-11-03 04:09:10,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,388 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 72 treesize of output 131 [2022-11-03 04:09:10,397 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 26 treesize of output 22 [2022-11-03 04:09:10,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,414 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 79 treesize of output 19 [2022-11-03 04:09:10,518 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:10,519 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 72 treesize of output 68 [2022-11-03 04:09:10,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,532 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 04:09:10,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,639 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:10,640 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 28 treesize of output 30 [2022-11-03 04:09:10,758 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:10,759 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 64 treesize of output 60 [2022-11-03 04:09:10,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,774 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 49 treesize of output 100 [2022-11-03 04:09:10,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:10,811 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 67 treesize of output 17 [2022-11-03 04:09:10,993 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:10,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 04:09:11,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:11,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,011 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 04:09:11,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 41 [2022-11-03 04:09:11,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,191 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:11,192 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 47 treesize of output 44 [2022-11-03 04:09:11,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,281 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:11,282 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 45 treesize of output 44 [2022-11-03 04:09:11,395 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:09:11,395 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 73 treesize of output 71 [2022-11-03 04:09:11,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:11,434 INFO L356 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2022-11-03 04:09:11,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 105 [2022-11-03 04:09:11,449 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 04:09:20,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 94 treesize of output 80 [2022-11-03 04:09:20,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:20,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:20,481 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 31 treesize of output 23 [2022-11-03 04:09:20,518 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 04:09:20,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:31,138 WARN L234 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:09:53,318 WARN L234 SmtUtils]: Spent 15.75s on a formula simplification. DAG size of input: 67 DAG size of output: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:13,650 WARN L234 SmtUtils]: Spent 15.59s on a formula simplification. DAG size of input: 74 DAG size of output: 55 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:10:48,921 WARN L234 SmtUtils]: Spent 22.60s on a formula simplification. DAG size of input: 134 DAG size of output: 73 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:48,309 WARN L234 SmtUtils]: Spent 17.75s on a formula simplification that was a NOOP. DAG size: 209 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:11:57,022 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse56 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse12 (<= .cse57 2147483647)) (.cse54 (* .cse57 8)) (.cse55 (* .cse56 8)) (.cse18 (<= .cse56 2147483647)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse33 (<= .cse53 2147483647)) (.cse17 (not .cse18)) (.cse5 (+ .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (not .cse12)) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse21 (+ .cse55 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse15 (+ .cse54 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse8 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ 24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse32 (* 8 .cse53))) (and (or (let ((.cse7 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse0 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (let ((.cse3 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse1 .cse2 (+ (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or .cse12 (and (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 5 (select (store (store (store (let ((.cse14 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse14) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse13 .cse2 (+ (select .cse13 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse17) (or .cse18 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= (select (store (store (store (let ((.cse20 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse19 .cse2 (+ (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))))) (or .cse12 (and (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse25 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= 5 (select (store (store (store (let ((.cse24 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse23 .cse2 (+ (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= 5 (select (store (store (store (let ((.cse27 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse26 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse27) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse26 .cse2 (+ (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse18))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse31 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (let ((.cse30 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse29 .cse2 (+ (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse0))) .cse33) (or (not .cse33) (let ((.cse36 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (and (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse37 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (let ((.cse35 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse34 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse35) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse34 .cse2 (+ (select .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or .cse18 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse38 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0) (= 5 (select (store (store (store (let ((.cse40 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse39 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse39 .cse2 (+ (select .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)))))) (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse41 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41)) (= 5 (select (store (store (store (let ((.cse43 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse42 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse42 .cse2 (+ (select .cse42 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse44 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse44)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 5 (select (store (store (store (let ((.cse46 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse45 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse46) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse45 .cse2 (+ (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse44 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse18)) .cse0) (or (and (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse49 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (let ((.cse48 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse47 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse47 .cse2 (+ (select .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse52 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 5 (select (store (store (store (let ((.cse51 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse50 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse50 .cse2 (+ (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse52)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse52 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) .cse12)))))))) (not (< 1 c_~N~0))) is different from true [2022-11-03 04:11:57,092 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,158 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:11:57,159 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 421 treesize of output 337 [2022-11-03 04:11:57,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,187 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:11:57,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 267 treesize of output 232 [2022-11-03 04:11:57,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,286 INFO L356 Elim1Store]: treesize reduction 6, result has 89.8 percent of original size [2022-11-03 04:11:57,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 228 treesize of output 237 [2022-11-03 04:11:57,744 INFO L356 Elim1Store]: treesize reduction 82, result has 57.1 percent of original size [2022-11-03 04:11:57,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 10 case distinctions, treesize of input 214 treesize of output 368 [2022-11-03 04:11:57,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 261 treesize of output 249 [2022-11-03 04:11:57,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:11:57,848 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 117 treesize of output 115 [2022-11-03 04:12:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 2 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-03 04:12:06,671 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:12:06,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285251873] [2022-11-03 04:12:06,671 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:12:06,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945082248] [2022-11-03 04:12:06,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945082248] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:12:06,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [413408024] [2022-11-03 04:12:06,672 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:12:06,673 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:12:06,673 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:12:06,673 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:12:06,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:12:06,813 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:12:06,813 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 04:12:06,936 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:12:06,937 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 04:12:06,963 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:12:07,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:12:07,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:12:07,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:12:07,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,294 INFO L356 Elim1Store]: treesize reduction 246, result has 10.5 percent of original size [2022-11-03 04:12:07,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 522 treesize of output 529 [2022-11-03 04:12:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,433 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 04:12:07,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:12:07,476 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:12:07,477 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 23 treesize of output 26 [2022-11-03 04:12:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:12:07,530 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:12:07,530 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 04:12:07,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:12:07,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:12:07,574 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:12:07,574 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 04:12:07,699 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:12:27,646 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3070#(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 04:12:27,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:12:27,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:12:27,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-03 04:12:27,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530277828] [2022-11-03 04:12:27,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:12:27,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 04:12:27,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:12:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 04:12:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=919, Unknown=36, NotChecked=64, Total=1190 [2022-11-03 04:12:27,648 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 29 states, 29 states have (on average 1.1724137931034482) 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 04:12:29,706 WARN L855 $PredicateComparison]: unable to prove that (and (or (let ((.cse56 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse57 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse12 (<= .cse57 2147483647)) (.cse54 (* .cse57 8)) (.cse55 (* .cse56 8)) (.cse18 (<= .cse56 2147483647)) (.cse53 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse33 (<= .cse53 2147483647)) (.cse17 (not .cse18)) (.cse5 (+ .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (not .cse12)) (.cse4 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse21 (+ .cse55 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse15 (+ .cse54 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse8 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ 24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse32 (* 8 .cse53))) (and (or (let ((.cse7 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))) (and (or .cse0 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (let ((.cse3 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse1 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse1 .cse2 (+ (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or .cse12 (and (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse16 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 5 (select (store (store (store (let ((.cse14 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse13 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse14) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse13 .cse2 (+ (select .cse13 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse16 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse17) (or .cse18 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= (select (store (store (store (let ((.cse20 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse19 .cse2 (+ (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))))) (or .cse12 (and (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse25 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= 5 (select (store (store (store (let ((.cse24 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse23 .cse2 (+ (select .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse25 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (= 5 (select (store (store (store (let ((.cse27 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse26 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse27) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse26 .cse2 (+ (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse18))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse31 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (let ((.cse30 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse7 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse29 .cse2 (+ (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse31 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse0))) .cse33) (or (not .cse33) (let ((.cse36 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (or (and (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse37 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (let ((.cse35 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse34 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse35) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse34 .cse2 (+ (select .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or .cse18 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse38 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse38 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0) (= 5 (select (store (store (store (let ((.cse40 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse39 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse39 .cse2 (+ (select .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)))))) (or .cse17 (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse41 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41)) (= 5 (select (store (store (store (let ((.cse43 (store (store (store (store .cse4 .cse5 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse42 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse42 .cse2 (+ (select .cse42 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse41 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) (or (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse44 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse44)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 5 (select (store (store (store (let ((.cse46 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse6 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse45 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse46) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse45 .cse2 (+ (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse44 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) .cse18)) .cse0) (or (and (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse49 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (let ((.cse48 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_705))) (let ((.cse47 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse47 .cse2 (+ (select .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2) 5) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0)))) (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_705 Int) (v_ArrVal_703 Int) (v_ArrVal_702 Int) (v_ArrVal_713 Int) (|v_ULTIMATE.start_main_~i~0#1_304| Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_699 Int)) (let ((.cse52 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 5 (select (store (store (store (let ((.cse51 (store (store (store (store .cse4 .cse21 v_ArrVal_699) .cse15 v_ArrVal_702) .cse36 v_ArrVal_703) (+ (* 8 (mod |v_ULTIMATE.start_main_~i~0#1_304| 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_705))) (let ((.cse50 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse50 .cse2 (+ (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse8 v_ArrVal_709) .cse9 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (not (<= .cse10 |v_ULTIMATE.start_main_~i~0#1_304|)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse52)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse52 1) c_~N~0) (not (< |v_ULTIMATE.start_main_~i~0#1_304| c_~N~0)) (< (+ |v_ULTIMATE.start_main_~i~0#1_304| 1) c_~N~0))))) .cse12)))))))) (not (< 1 c_~N~0))) (<= (mod c_~N~0 4294967296) 536870911) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= c_~N~0 2147483647) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (exists ((v_DerPreprocessor_12 (Array Int Int))) (and (= (select v_DerPreprocessor_12 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= 4 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_DerPreprocessor_12) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (= |c_ULTIMATE.start_main_~i~0#1| 1)) is different from true [2022-11-03 04:13:51,598 WARN L234 SmtUtils]: Spent 18.10s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:40,026 WARN L234 SmtUtils]: Spent 18.11s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:14:46,098 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (or (let ((.cse1 (+ (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_713 Int) (v_ArrVal_712 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|) (= 5 (select (store (store (store .cse0 .cse1 v_ArrVal_709) .cse2 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse3)) (<= 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)))) (forall ((v_ArrVal_709 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_713 Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= 5 (select (store (store (store .cse0 .cse1 v_ArrVal_709) .cse2 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse3)) (<= 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)))))) (not (< 1 c_~N~0))) (<= 5 c_~N~0) (<= (mod c_~N~0 4294967296) 536870911) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= 5 (select .cse0 .cse3)) (exists ((v_DerPreprocessor_16 Int) (|aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| Int) (|aux_div_v_ULTIMATE.start_main_~i~0#1_294_51| Int)) (let ((.cse7 (let ((.cse9 (* (mod |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| 4294967296) 8))) (let ((.cse8 (+ .cse9 |c_ULTIMATE.start_main_~b~0#1.offset|))) (store (store .cse0 .cse8 v_DerPreprocessor_16) (+ .cse9 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse0 .cse8))))) (.cse6 (* |aux_div_v_ULTIMATE.start_main_~i~0#1_294_51| 4294967296))) (and (<= |c_ULTIMATE.start_main_~i~0#1| (+ |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| .cse6 1)) (<= 0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51|) (= (select .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| 2147483647) (= (select .cse7 .cse3) 5) (< (+ |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| .cse6) c_~N~0)))) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (= (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0) 4)) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0) 4) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)))) (<= c_~N~0 2147483647))) is different from false [2022-11-03 04:14:49,633 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse2 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (<= 5 c_~N~0) (<= (mod c_~N~0 4294967296) 536870911) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (exists ((v_DerPreprocessor_16 Int) (|aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| Int) (|aux_div_v_ULTIMATE.start_main_~i~0#1_294_51| Int)) (let ((.cse1 (let ((.cse5 (* (mod |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| 4294967296) 8))) (let ((.cse4 (+ .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|))) (store (store .cse3 .cse4 v_DerPreprocessor_16) (+ .cse5 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 .cse4))))) (.cse0 (* |aux_div_v_ULTIMATE.start_main_~i~0#1_294_51| 4294967296))) (and (<= |c_ULTIMATE.start_main_~i~0#1| (+ |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| .cse0 1)) (<= 0 |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (<= |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| 2147483647) (= (select .cse1 .cse2) 5) (< (+ |aux_mod_v_ULTIMATE.start_main_~i~0#1_294_51| .cse0) c_~N~0)))) (exists ((|ULTIMATE.start_main_~a~0#1.base| Int)) (and (= (select (select |c_#memory_int| |ULTIMATE.start_main_~a~0#1.base|) 0) 4) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |ULTIMATE.start_main_~a~0#1.base|)))) (<= c_~N~0 2147483647) (or (let ((.cse6 (+ (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_713 Int) (v_ArrVal_712 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse7 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store .cse3 .cse6 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (< (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse7 1) c_~N~0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_713 Int) (v_ArrVal_712 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|) (= 5 (select (store (store .cse3 .cse6 v_ArrVal_712) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_713) .cse2)) (<= 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)))))) (not (< 1 c_~N~0))))) is different from false [2022-11-03 04:14:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:14:51,858 INFO L93 Difference]: Finished difference Result 88 states and 112 transitions. [2022-11-03 04:14:51,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-03 04:14:51,858 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.1724137931034482) 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) Word has length 18 [2022-11-03 04:14:51,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:14:51,859 INFO L225 Difference]: With dead ends: 88 [2022-11-03 04:14:51,859 INFO L226 Difference]: Without dead ends: 86 [2022-11-03 04:14:51,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 13 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 327.0s TimeCoverageRelationStatistics Valid=276, Invalid=1466, Unknown=80, NotChecked=340, Total=2162 [2022-11-03 04:14:51,861 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:14:51,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 40 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 63 Unchecked, 0.1s Time] [2022-11-03 04:14:51,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-03 04:14:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 58. [2022-11-03 04:14:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 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 04:14:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2022-11-03 04:14:51,891 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 18 [2022-11-03 04:14:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:14:51,891 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2022-11-03 04:14:51,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.1724137931034482) 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 04:14:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2022-11-03 04:14:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 04:14:51,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:14:51,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 04:14:51,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 04:14:52,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 04:14:52,100 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:14:52,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:14:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1481457124, now seen corresponding path program 6 times [2022-11-03 04:14:52,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:14:52,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928252721] [2022-11-03 04:14:52,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:14:52,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:14:52,118 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:14:52,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216231887] [2022-11-03 04:14:52,119 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:14:52,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:14:52,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:14:52,120 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:14:52,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 04:14:52,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:14:52,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:14:52,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-03 04:14:52,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:14:52,603 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 04:14:52,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,608 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-03 04:14:52,612 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 20 treesize of output 20 [2022-11-03 04:14:52,615 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:14:52,621 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:14:52,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,656 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:14:52,657 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 34 treesize of output 32 [2022-11-03 04:14:52,721 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:14:52,722 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 87 treesize of output 79 [2022-11-03 04:14:52,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,734 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 68 treesize of output 135 [2022-11-03 04:14:52,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,807 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:14:52,808 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 04:14:52,914 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:14:52,915 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 159 treesize of output 145 [2022-11-03 04:14:52,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:14:52,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,932 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 131 treesize of output 213 [2022-11-03 04:14:52,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:52,961 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 214 treesize of output 124 [2022-11-03 04:14:53,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,052 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:14:53,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,057 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:14:53,058 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 66 treesize of output 56 [2022-11-03 04:14:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:14:53,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:14:53,141 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:14:53,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 70 [2022-11-03 04:14:53,466 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 04:14:53,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:08,298 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse61 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse62 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse60 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse59 (* .cse60 8)) (.cse12 (<= .cse62 2147483647)) (.cse58 (* .cse62 8)) (.cse57 (* 8 .cse61)) (.cse44 (<= .cse61 2147483647)) (.cse24 (<= .cse60 2147483647)) (.cse56 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse56 2147483647)) (.cse25 (not .cse24)) (.cse20 (not .cse44)) (.cse10 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse9 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (not .cse12)) (.cse31 (+ .cse59 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (+ .cse59 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse18 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse19 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse21 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse32 (* 8 .cse56))) (and (or .cse0 (let ((.cse23 (+ (select .cse21 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse32)) 4))) (and (or (let ((.cse8 (store .cse21 .cse22 .cse23))) (and (or (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse7 (store (store .cse8 .cse9 v_ArrVal_770) .cse10 v_ArrVal_772))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse7))) (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse1 (select .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse2 (select .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse1 .cse2 (select (select (store .cse3 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse4 .cse5 (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)))))) 13)) .cse11) (or .cse12 (and (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse17 (store (store .cse8 .cse18 v_ArrVal_770) .cse19 v_ArrVal_772))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse17))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse13 (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse15 .cse5 (+ .cse13 .cse16))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse16))))) 13)) .cse20)))) .cse24) (or .cse25 (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse30 (store (store (store .cse21 .cse31 .cse23) .cse9 v_ArrVal_770) .cse10 v_ArrVal_772))) (let ((.cse28 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30))) (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse26 (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse27 (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse26 .cse27 (select (select (store .cse28 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse29 .cse5 (+ .cse26 .cse27))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)))))) 13)))))) (or (not .cse0) (let ((.cse50 (+ 4 (select .cse21 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse32))))) (and (or .cse25 (let ((.cse38 (store .cse21 .cse31 .cse50))) (and (or (and (or .cse20 (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse37 (store (store .cse38 .cse9 v_ArrVal_770) .cse10 v_ArrVal_772))) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse37))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse33 (select .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse34 (select .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse33 .cse34 (select (select (store .cse35 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse36 .cse5 (+ .cse33 .cse34))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6)))))) 13))) (or (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse43 (store (store .cse38 .cse9 v_ArrVal_770) .cse19 v_ArrVal_772))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse43))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse42 (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse40 .cse5 (+ .cse41 .cse42))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse41 .cse42))))) 13)) .cse44)) .cse11) (or .cse12 (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse49 (store (store .cse38 .cse18 v_ArrVal_770) .cse19 v_ArrVal_772))) (let ((.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse49))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse45 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse48 (select .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse45 (select (select (store .cse46 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse47 .cse5 (+ .cse45 .cse48))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse48))))) 13)))))) (or (forall ((v_ArrVal_772 Int) (v_ArrVal_770 Int)) (= (let ((.cse55 (store (store (store .cse21 .cse22 .cse50) .cse18 v_ArrVal_770) .cse19 v_ArrVal_772))) (let ((.cse52 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse55))) (let ((.cse53 (select .cse52 |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse51 (select .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse54 (select .cse53 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse51 (select (select (store .cse52 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse53 .cse5 (+ .cse51 .cse54))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse6) .cse54))))) 13)) .cse24)))))))) is different from false [2022-11-03 04:15:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-11-03 04:15:09,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:09,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928252721] [2022-11-03 04:15:09,130 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:15:09,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216231887] [2022-11-03 04:15:09,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216231887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:15:09,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [104832843] [2022-11-03 04:15:09,132 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:15:09,132 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:15:09,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:15:09,132 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:15:09,133 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:15:09,249 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:15:09,250 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 04:15:09,264 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 04:15:09,291 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:15:09,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:15:09,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,653 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:15:09,654 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:15:09,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,788 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 04:15:09,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,811 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:09,811 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 04:15:09,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,912 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 04:15:09,912 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 210 treesize of output 191 [2022-11-03 04:15:09,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:09,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:09,965 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:09,965 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 04:15:10,095 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:15:10,903 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3476#(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 04:15:10,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:15:10,903 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:15:10,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-03 04:15:10,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240174778] [2022-11-03 04:15:10,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:15:10,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 04:15:10,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 04:15:10,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=765, Unknown=2, NotChecked=56, Total=930 [2022-11-03 04:15:10,905 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 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 04:15:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:15,908 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2022-11-03 04:15:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 04:15:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 04:15:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:15,909 INFO L225 Difference]: With dead ends: 83 [2022-11-03 04:15:15,909 INFO L226 Difference]: Without dead ends: 73 [2022-11-03 04:15:15,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=159, Invalid=1033, Unknown=2, NotChecked=66, Total=1260 [2022-11-03 04:15:15,910 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 94 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:15,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 94 Unchecked, 0.3s Time] [2022-11-03 04:15:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-03 04:15:15,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2022-11-03 04:15:15,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.35) internal successors, (81), 60 states have internal predecessors, (81), 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 04:15:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2022-11-03 04:15:15,957 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 19 [2022-11-03 04:15:15,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:15,957 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2022-11-03 04:15:15,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 25 states have internal predecessors, (35), 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 04:15:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2022-11-03 04:15:15,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 04:15:15,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:15,959 INFO L195 NwaCegarLoop]: trace histogram [8, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:15,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-11-03 04:15:16,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 04:15:16,174 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:16,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:16,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1715181741, now seen corresponding path program 8 times [2022-11-03 04:15:16,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:16,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908527698] [2022-11-03 04:15:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:16,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:16,201 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:15:16,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661845737] [2022-11-03 04:15:16,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:15:16,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:16,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:16,203 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:16,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 04:15:17,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-03 04:15:17,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:15:17,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:15:17,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:15:17,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 30 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 04:15:17,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:17,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908527698] [2022-11-03 04:15:17,821 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:15:17,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661845737] [2022-11-03 04:15:17,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661845737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:15:17,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [41440098] [2022-11-03 04:15:17,822 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:15:17,822 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:15:17,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:15:17,823 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:15:17,823 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:15:17,923 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:15:17,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:15:18,050 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:15:18,050 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 04:15:18,198 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:15:18,198 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 04:15:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:15:18,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:18,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:18,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,557 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 04:15:18,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 522 treesize of output 534 [2022-11-03 04:15:18,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,771 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 04:15:18,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,790 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:18,790 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 23 treesize of output 26 [2022-11-03 04:15:18,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:18,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:18,931 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 04:15:18,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 182 [2022-11-03 04:15:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:18,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:18,985 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:18,986 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 04:15:19,003 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:15:19,388 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3854#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:15:19,388 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:15:19,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:15:19,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2022-11-03 04:15:19,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167843067] [2022-11-03 04:15:19,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:15:19,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 04:15:19,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:19,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 04:15:19,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-11-03 04:15:19,390 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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 04:15:20,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:20,012 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2022-11-03 04:15:20,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 04:15:20,013 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 04:15:20,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:20,014 INFO L225 Difference]: With dead ends: 133 [2022-11-03 04:15:20,014 INFO L226 Difference]: Without dead ends: 117 [2022-11-03 04:15:20,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=298, Invalid=1184, Unknown=0, NotChecked=0, Total=1482 [2022-11-03 04:15:20,015 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 129 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:20,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 81 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:15:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-03 04:15:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 67. [2022-11-03 04:15:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 66 states have internal predecessors, (85), 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 04:15:20,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2022-11-03 04:15:20,057 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 19 [2022-11-03 04:15:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:20,057 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2022-11-03 04:15:20,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 17 states have internal predecessors, (23), 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 04:15:20,057 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2022-11-03 04:15:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 04:15:20,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:20,059 INFO L195 NwaCegarLoop]: trace histogram [7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:20,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:20,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:20,266 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:20,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:20,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1598225297, now seen corresponding path program 7 times [2022-11-03 04:15:20,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:20,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051412431] [2022-11-03 04:15:20,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:20,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:20,293 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:15:20,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018415773] [2022-11-03 04:15:20,294 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 04:15:20,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:20,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:20,295 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:20,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 04:15:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:15:20,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 04:15:20,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:20,517 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:15:20,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 21 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 04:15:20,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:20,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051412431] [2022-11-03 04:15:20,645 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:15:20,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018415773] [2022-11-03 04:15:20,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018415773] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:15:20,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1000321289] [2022-11-03 04:15:20,646 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:15:20,647 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:15:20,647 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:15:20,647 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:15:20,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:15:20,768 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:15:20,768 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 04:15:20,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:15:20,803 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 04:15:20,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:15:20,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:20,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:20,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:20,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,076 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:15:21,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:15:21,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,174 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 04:15:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,190 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:21,191 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 23 treesize of output 26 [2022-11-03 04:15:21,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:21,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:21,330 INFO L356 Elim1Store]: treesize reduction 253, result has 10.3 percent of original size [2022-11-03 04:15:21,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 177 [2022-11-03 04:15:21,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:21,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:21,391 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:21,391 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 04:15:21,492 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:15:22,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4327#(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 04:15:22,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:15:22,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:15:22,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2022-11-03 04:15:22,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767117615] [2022-11-03 04:15:22,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:15:22,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-03 04:15:22,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:22,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-03 04:15:22,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2022-11-03 04:15:22,035 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:15:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:23,320 INFO L93 Difference]: Finished difference Result 160 states and 181 transitions. [2022-11-03 04:15:23,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-03 04:15:23,321 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 04:15:23,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:23,322 INFO L225 Difference]: With dead ends: 160 [2022-11-03 04:15:23,322 INFO L226 Difference]: Without dead ends: 135 [2022-11-03 04:15:23,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=675, Invalid=2405, Unknown=0, NotChecked=0, Total=3080 [2022-11-03 04:15:23,324 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 105 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:23,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 210 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:15:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-03 04:15:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 63. [2022-11-03 04:15:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.2258064516129032) internal successors, (76), 62 states have internal predecessors, (76), 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 04:15:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-11-03 04:15:23,352 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 19 [2022-11-03 04:15:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:23,352 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-11-03 04:15:23,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:15:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-11-03 04:15:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 04:15:23,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:23,353 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:23,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:23,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:23,558 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:23,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:23,558 INFO L85 PathProgramCache]: Analyzing trace with hash -394448710, now seen corresponding path program 9 times [2022-11-03 04:15:23,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:23,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429232117] [2022-11-03 04:15:23,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:23,585 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:15:23,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368988725] [2022-11-03 04:15:23,585 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 04:15:23,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:23,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:23,587 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:23,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 04:15:23,724 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 04:15:23,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:15:23,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-03 04:15:23,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:23,855 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:15:23,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:23,994 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 33 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:15:23,994 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:15:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429232117] [2022-11-03 04:15:23,994 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:15:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368988725] [2022-11-03 04:15:23,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368988725] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:15:23,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [770677135] [2022-11-03 04:15:23,996 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 04:15:23,996 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:15:23,996 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:15:23,996 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:15:23,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:15:24,084 INFO L356 Elim1Store]: treesize reduction 66, result has 37.7 percent of original size [2022-11-03 04:15:24,084 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 123 [2022-11-03 04:15:24,219 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 04:15:24,220 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 04:15:24,350 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:15:24,350 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 04:15:24,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:24,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,387 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 166 [2022-11-03 04:15:24,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,556 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:24,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:24,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,658 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 04:15:24,658 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 43 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 42 case distinctions, treesize of input 589 treesize of output 530 [2022-11-03 04:15:24,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,766 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 04:15:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,785 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:24,786 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 26 [2022-11-03 04:15:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:24,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:24,858 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:24,968 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 04:15:24,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 182 [2022-11-03 04:15:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:25,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:25,045 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:25,046 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 04:15:25,064 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:15:25,444 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4858#(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) (= (ite (= (+ (* 2 (* |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~i~0#1|)) (* 2 |ULTIMATE.start_main_~i~0#1|) 1) |ULTIMATE.start_main_#t~mem13#1|) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (<= 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) (<= |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 04:15:25,446 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:15:25,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:15:25,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 20 [2022-11-03 04:15:25,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938315208] [2022-11-03 04:15:25,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:15:25,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 04:15:25,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:15:25,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 04:15:25,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=466, Unknown=0, NotChecked=0, Total=600 [2022-11-03 04:15:25,448 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:15:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:15:26,391 INFO L93 Difference]: Finished difference Result 132 states and 149 transitions. [2022-11-03 04:15:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 04:15:26,392 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 04:15:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:15:26,393 INFO L225 Difference]: With dead ends: 132 [2022-11-03 04:15:26,393 INFO L226 Difference]: Without dead ends: 120 [2022-11-03 04:15:26,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 29 SyntacticMatches, 6 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 662 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=482, Invalid=1968, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 04:15:26,396 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 130 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:15:26,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 97 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:15:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-03 04:15:26,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 74. [2022-11-03 04:15:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.2328767123287672) internal successors, (90), 73 states have internal predecessors, (90), 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 04:15:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 90 transitions. [2022-11-03 04:15:26,435 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 90 transitions. Word has length 20 [2022-11-03 04:15:26,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:15:26,435 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 90 transitions. [2022-11-03 04:15:26,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:15:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 90 transitions. [2022-11-03 04:15:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 04:15:26,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:15:26,436 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:15:26,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 04:15:26,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:26,642 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:15:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:15:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 51791853, now seen corresponding path program 8 times [2022-11-03 04:15:26,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:15:26,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564166595] [2022-11-03 04:15:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:15:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:15:26,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 04:15:26,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291659935] [2022-11-03 04:15:26,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 04:15:26,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:15:26,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:15:26,669 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:15:26,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2cce65-bb84-49fd-bc6c-f9c1f3511d36/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-03 04:15:28,834 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 04:15:28,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 04:15:28,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-03 04:15:28,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:15:28,889 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 04:15:28,889 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-11-03 04:15:28,895 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 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-03 04:15:28,926 INFO L356 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2022-11-03 04:15:28,927 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 43 treesize of output 68 [2022-11-03 04:15:28,943 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 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 04:15:28,966 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 24 treesize of output 17 [2022-11-03 04:15:28,970 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 04:15:28,980 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2022-11-03 04:15:29,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:15:29,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 48 [2022-11-03 04:15:29,067 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 9 treesize of output 7 [2022-11-03 04:15:29,086 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 04:15:29,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,147 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:29,147 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 28 treesize of output 30 [2022-11-03 04:15:29,216 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:15:29,216 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 72 treesize of output 68 [2022-11-03 04:15:29,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,225 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 04:15:29,230 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 04:15:29,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,304 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:29,304 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 28 treesize of output 30 [2022-11-03 04:15:29,373 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:15:29,373 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 72 treesize of output 68 [2022-11-03 04:15:29,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,382 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 04:15:29,459 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:15:29,459 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 107 treesize of output 101 [2022-11-03 04:15:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,468 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 04:15:29,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,585 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:29,586 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 04:15:29,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,642 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:29,642 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 47 treesize of output 44 [2022-11-03 04:15:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,694 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:15:29,694 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 04:15:29,773 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:15:29,774 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 89 treesize of output 85 [2022-11-03 04:15:29,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,785 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-11-03 04:15:29,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 130 [2022-11-03 04:15:29,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,849 INFO L356 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2022-11-03 04:15:29,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 58 [2022-11-03 04:15:29,972 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 93 treesize of output 87 [2022-11-03 04:15:29,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:29,998 INFO L356 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2022-11-03 04:15:29,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 125 [2022-11-03 04:15:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:30,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:15:30,085 INFO L356 Elim1Store]: treesize reduction 54, result has 37.9 percent of original size [2022-11-03 04:15:30,086 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 72 [2022-11-03 04:15:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:15:30,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:15:43,178 WARN L234 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:16:07,810 WARN L234 SmtUtils]: Spent 15.94s on a formula simplification. DAG size of input: 77 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:16:32,855 WARN L234 SmtUtils]: Spent 16.26s on a formula simplification. DAG size of input: 84 DAG size of output: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:17:55,140 WARN L234 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 147 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:27,965 WARN L234 SmtUtils]: Spent 11.38s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:18:43,947 WARN L234 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 166 DAG size of output: 145 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:19:07,209 WARN L234 SmtUtils]: Spent 19.01s on a formula simplification. DAG size of input: 193 DAG size of output: 173 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:28,255 WARN L234 SmtUtils]: Spent 1.04m on a formula simplification. DAG size of input: 225 DAG size of output: 204 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:28,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:28,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:28,330 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 04:20:28,331 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 373 treesize of output 1 [2022-11-03 04:20:28,334 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 31 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:20:28,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:20:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564166595] [2022-11-03 04:20:28,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 04:20:28,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291659935] [2022-11-03 04:20:28,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291659935] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:20:28,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1104788416] [2022-11-03 04:20:28,336 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 04:20:28,336 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:20:28,337 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:20:28,337 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:20:28,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:20:28,450 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 04:20:28,450 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 04:20:28,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 105 [2022-11-03 04:20:28,481 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 04:20:28,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 31 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 122 [2022-11-03 04:20:28,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:28,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:28,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,749 INFO L356 Elim1Store]: treesize reduction 246, result has 10.5 percent of original size [2022-11-03 04:20:28,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 42 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 43 case distinctions, treesize of input 522 treesize of output 529 [2022-11-03 04:20:28,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,912 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 04:20:28,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,929 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:20:28,929 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 23 treesize of output 26 [2022-11-03 04:20:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:28,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:29,051 INFO L356 Elim1Store]: treesize reduction 248, result has 12.1 percent of original size [2022-11-03 04:20:29,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 146 treesize of output 182 [2022-11-03 04:20:29,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:29,105 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:20:29,105 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 04:20:29,206 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:20:34,524 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5379#(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 04:20:34,524 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:20:34,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 04:20:34,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-11-03 04:20:34,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992020089] [2022-11-03 04:20:34,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 04:20:34,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-03 04:20:34,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:20:34,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-03 04:20:34,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=1172, Unknown=31, NotChecked=0, Total=1406 [2022-11-03 04:20:34,526 INFO L87 Difference]: Start difference. First operand 74 states and 90 transitions. Second operand has 32 states, 32 states have (on average 1.1875) internal successors, (38), 32 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 04:21:32,281 WARN L234 SmtUtils]: Spent 21.88s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:21:34,365 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse79 (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (.cse82 (+ 2 |c_ULTIMATE.start_main_~i~0#1|))) (let ((.cse32 (mod .cse82 4294967296)) (.cse84 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse85 (mod .cse79 4294967296))) (let ((.cse48 (<= .cse85 2147483647)) (.cse80 (* .cse85 8)) (.cse81 (* .cse84 8)) (.cse83 (* 8 .cse32)) (.cse17 (<= .cse84 2147483647))) (let ((.cse8 (< |c_ULTIMATE.start_main_~i~0#1| c_~N~0)) (.cse31 (not .cse17)) (.cse23 (+ .cse83 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse16 (+ .cse83 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse34 (+ 3 |c_ULTIMATE.start_main_~i~0#1|)) (.cse33 (< .cse82 c_~N~0)) (.cse14 (+ .cse81 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse15 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse21 (+ .cse81 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse22 (+ .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ 24 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (not .cse48)) (.cse9 (not (< 1 c_~N~0))) (.cse35 (< .cse79 c_~N~0))) (and (or (let ((.cse1 (let ((.cse6 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse6 .cse4 (+ (select .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (and (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 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 (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (= 5 (select (store (store (store (store .cse1 .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse5 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse5 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (store .cse1 .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse8 .cse9) (or (let ((.cse27 (<= .cse32 2147483647))) (let ((.cse10 (not .cse27))) (and (or (and .cse10 (forall ((v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse11 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse11 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 5 (select (store (store (store (store (let ((.cse13 (store (store (store .cse7 .cse14 v_ArrVal_1055) .cse15 v_ArrVal_1056) .cse16 v_ArrVal_1058))) (let ((.cse12 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse12 .cse4 (+ (select .cse12 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)))))) .cse17) (or (and (or .cse10 (forall ((v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1068 Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse18 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse18) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse18 1)) (= 5 (select (store (store (store (store (let ((.cse20 (store (store (store .cse7 .cse21 v_ArrVal_1055) .cse22 v_ArrVal_1056) .cse23 v_ArrVal_1058))) (let ((.cse19 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse19 .cse4 (+ (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (forall ((v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse24 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse24 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse26 (store (store (store .cse7 .cse21 v_ArrVal_1055) .cse15 v_ArrVal_1056) .cse16 v_ArrVal_1058))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse25 .cse4 (+ (select .cse25 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse26 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (or .cse27 (forall ((v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1068 Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse28 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse28 1)) (= 5 (select (store (store (store (store (let ((.cse30 (store (store (store .cse7 .cse21 v_ArrVal_1055) .cse22 v_ArrVal_1056) .cse16 v_ArrVal_1058))) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse29 .cse4 (+ (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) .cse31)))) .cse9 (not .cse33) (< .cse34 c_~N~0)) (or .cse35 (and (or .cse31 (and (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse36 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse36) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse36 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (store (let ((.cse38 (store .cse7 .cse21 v_ArrVal_1058))) (let ((.cse37 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse38) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse37 .cse4 (+ (select .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse39 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse39) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse39 1)) (= (select (store (store (store (store (let ((.cse41 (store .cse7 .cse21 v_ArrVal_1058))) (let ((.cse40 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse41) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse40 .cse4 (+ (select .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))) (or (and (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse42 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse42) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= 5 (select (store (store (store (store (let ((.cse44 (store .cse7 .cse14 v_ArrVal_1058))) (let ((.cse43 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse44) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse43 .cse4 (+ (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse44 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse42 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse47 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (store (let ((.cse46 (store .cse7 .cse14 v_ArrVal_1058))) (let ((.cse45 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse46) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse45 .cse4 (+ (select .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse47) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse47 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse17)) .cse9 (not .cse8)) (or (<= c_~N~0 .cse34) (<= c_~N~0 1) (let ((.cse69 (mod .cse34 4294967296))) (let ((.cse65 (* .cse69 8)) (.cse58 (<= .cse69 2147483647))) (let ((.cse56 (not .cse58)) (.cse52 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse65))) (and (or .cse48 (and (or .cse31 (forall ((v_ArrVal_1053 Int) (v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1068 Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse49 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse49 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse51 (store (store (store (store .cse7 .cse21 v_ArrVal_1053) .cse15 v_ArrVal_1055) .cse16 v_ArrVal_1056) .cse52 v_ArrVal_1058))) (let ((.cse50 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse50 .cse4 (+ (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or .cse17 (forall ((v_ArrVal_1053 Int) (v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1068 Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse53 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse53) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse53 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= 5 (select (store (store (store (store (let ((.cse55 (store (store (store (store .cse7 .cse14 v_ArrVal_1053) .cse15 v_ArrVal_1055) .cse16 v_ArrVal_1056) .cse52 v_ArrVal_1058))) (let ((.cse54 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse55) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse54 .cse4 (+ (select .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)))))) .cse56)) (or .cse57 (and (or .cse58 (forall ((v_ArrVal_1053 Int) (v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse59 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse59) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse59 1)) (= 5 (select (store (store (store (store (let ((.cse61 (store (store (store (store .cse7 .cse21 v_ArrVal_1053) .cse22 v_ArrVal_1055) .cse23 v_ArrVal_1056) .cse52 v_ArrVal_1058))) (let ((.cse60 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse61) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse60 .cse4 (+ (select .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse60 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((v_ArrVal_1053 Int) (v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1068 Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse62 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse62) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse62 1)) (= 5 (select (store (store (store (store (let ((.cse64 (store (store (store (store .cse7 .cse21 v_ArrVal_1053) .cse22 v_ArrVal_1055) .cse23 v_ArrVal_1056) (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse65) v_ArrVal_1058))) (let ((.cse63 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse64) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse63 .cse4 (+ (select .cse63 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse56) (forall ((v_ArrVal_1053 Int) (v_ArrVal_1063 Int) (v_ArrVal_1055 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse66 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse66) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse66 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store (store (store (let ((.cse68 (store (store (store (store .cse7 .cse21 v_ArrVal_1053) .cse22 v_ArrVal_1055) .cse16 v_ArrVal_1056) .cse52 v_ArrVal_1058))) (let ((.cse67 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse68) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse67 .cse4 (+ (select .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5)))))))))) (< (+ |c_ULTIMATE.start_main_~i~0#1| 4) c_~N~0)) (or .cse33 (and (or (and .cse57 (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse70 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse70) c_~N~0) (= (select (store (store (store (store (let ((.cse72 (store (store .cse7 .cse14 v_ArrVal_1056) .cse15 v_ArrVal_1058))) (let ((.cse71 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse72) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse71 .cse4 (+ (select .cse72 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse71 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse70 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) .cse17) (or .cse48 (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse73 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse73) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse73 1)) (= 5 (select (store (store (store (store (let ((.cse75 (store (store .cse7 .cse21 v_ArrVal_1056) .cse15 v_ArrVal_1058))) (let ((.cse74 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse75) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse74 .cse4 (+ (select .cse74 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse75 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((v_ArrVal_1063 Int) (v_ArrVal_1066 Int) (v_ArrVal_1065 Int) (v_ArrVal_1068 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_1056 Int) (v_ArrVal_1058 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse76 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse76) c_~N~0) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse76 1)) (= (select (store (store (store (store (let ((.cse78 (store (store .cse7 .cse21 v_ArrVal_1056) .cse22 v_ArrVal_1058))) (let ((.cse77 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse78) |c_ULTIMATE.start_main_~b~0#1.base|))) (store .cse77 .cse4 (+ (select .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse78 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse2 v_ArrVal_1063) .cse3 v_ArrVal_1065) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1066) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_1068) .cse4) 5) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse57)) .cse9 (not .cse35))))))) is different from true [2022-11-03 04:22:38,651 WARN L234 SmtUtils]: Spent 34.13s on a formula simplification that was a NOOP. DAG size: 68 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)