./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sqm.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_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/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_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/sqm.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/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_e24bee4c-3171-49a4-9fa0-577c1106fb57/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 950fd5ff5cc9d2c5e3d846192e43f4963ef3abd0ec7056eb5d764989d48b2064 --- 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 03:30:48,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:30:48,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:30:48,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:30:48,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:30:48,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:30:48,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:30:48,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:30:48,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:30:48,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:30:48,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:30:48,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:30:48,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:30:48,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:30:48,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:30:48,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:30:48,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:30:48,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:30:48,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:30:48,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:30:48,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:30:48,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:30:48,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:30:48,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:30:48,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:30:48,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:30:48,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:30:48,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:30:48,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:30:48,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:30:48,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:30:48,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:30:48,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:30:48,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:30:48,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:30:48,384 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:30:48,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:30:48,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:30:48,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:30:48,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:30:48,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:30:48,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:30:48,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:30:48,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:30:48,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:30:48,429 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:30:48,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:30:48,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:30:48,431 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:30:48,431 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:30:48,431 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:30:48,431 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:30:48,432 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:30:48,433 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:30:48,433 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:30:48,433 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:30:48,433 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:30:48,433 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:30:48,434 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:30:48,434 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:30:48,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:30:48,435 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:30:48,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:30:48,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:30:48,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:30:48,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:30:48,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:30:48,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:30:48,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:30:48,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:30:48,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:30:48,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:30:48,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:30:48,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:30:48,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:30:48,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:30:48,439 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:30:48,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:30:48,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:30:48,440 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:30:48,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:30:48,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:30:48,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:30:48,441 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_e24bee4c-3171-49a4-9fa0-577c1106fb57/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 950fd5ff5cc9d2c5e3d846192e43f4963ef3abd0ec7056eb5d764989d48b2064 [2022-11-03 03:30:48,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:30:48,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:30:48,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:30:48,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:30:48,742 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:30:48,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/array-fpi/sqm.c [2022-11-03 03:30:48,807 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/data/3ff3f91e0/caa8498616804abebd5668fefa33d66a/FLAGc62f4085c [2022-11-03 03:30:49,234 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:30:49,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/sv-benchmarks/c/array-fpi/sqm.c [2022-11-03 03:30:49,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/data/3ff3f91e0/caa8498616804abebd5668fefa33d66a/FLAGc62f4085c [2022-11-03 03:30:49,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/data/3ff3f91e0/caa8498616804abebd5668fefa33d66a [2022-11-03 03:30:49,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:30:49,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:30:49,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:30:49,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:30:49,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:30:49,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:30:49" (1/1) ... [2022-11-03 03:30:49,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66583447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:49, skipping insertion in model container [2022-11-03 03:30:49,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:30:49" (1/1) ... [2022-11-03 03:30:49,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:30:49,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:30:49,901 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_e24bee4c-3171-49a4-9fa0-577c1106fb57/sv-benchmarks/c/array-fpi/sqm.c[586,599] [2022-11-03 03:30:49,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:30:49,953 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:30:49,971 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_e24bee4c-3171-49a4-9fa0-577c1106fb57/sv-benchmarks/c/array-fpi/sqm.c[586,599] [2022-11-03 03:30:49,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:30:50,006 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:30:50,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50 WrapperNode [2022-11-03 03:30:50,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:30:50,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:30:50,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:30:50,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:30:50,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,063 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2022-11-03 03:30:50,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:30:50,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:30:50,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:30:50,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:30:50,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,110 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:30:50,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:30:50,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:30:50,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:30:50,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (1/1) ... [2022-11-03 03:30:50,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:30:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:50,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:30:50,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:30:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:30:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:30:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:30:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:30:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:30:50,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:30:50,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:30:50,284 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:30:50,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:30:50,511 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:30:50,552 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:30:50,552 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-03 03:30:50,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:50 BoogieIcfgContainer [2022-11-03 03:30:50,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:30:50,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:30:50,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:30:50,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:30:50,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:30:49" (1/3) ... [2022-11-03 03:30:50,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98276e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:50, skipping insertion in model container [2022-11-03 03:30:50,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:30:50" (2/3) ... [2022-11-03 03:30:50,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@98276e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:30:50, skipping insertion in model container [2022-11-03 03:30:50,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:30:50" (3/3) ... [2022-11-03 03:30:50,564 INFO L112 eAbstractionObserver]: Analyzing ICFG sqm.c [2022-11-03 03:30:50,582 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:30:50,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:30:50,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:30:50,637 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;@7741c2c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:30:50,638 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:30:50,641 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 03:30:50,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 03:30:50,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:50,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:50,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:50,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash -735732333, now seen corresponding path program 1 times [2022-11-03 03:30:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:50,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987491868] [2022-11-03 03:30:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:50,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:50,758 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:50,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18543572] [2022-11-03 03:30:50,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:50,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:50,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:50,771 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:50,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:30:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:50,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 03:30:50,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:51,045 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-03 03:30:51,046 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 03:30:51,078 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 03:30:51,111 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 03:30:51,288 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 03:30:51,309 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 03:30:51,318 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 03:30:51,409 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 03:30:51,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:30:51,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:51,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987491868] [2022-11-03 03:30:51,410 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:51,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18543572] [2022-11-03 03:30:51,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18543572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:51,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:51,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 03:30:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665144422] [2022-11-03 03:30:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:51,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 03:30:51,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:51,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 03:30:51,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 03:30:51,449 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 03:30:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:51,624 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2022-11-03 03:30:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:30:51,628 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 03:30:51,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:51,635 INFO L225 Difference]: With dead ends: 35 [2022-11-03 03:30:51,636 INFO L226 Difference]: Without dead ends: 20 [2022-11-03 03:30:51,638 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 03:30:51,645 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 03:30:51,652 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 03:30:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-03 03:30:51,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2022-11-03 03:30:51,684 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 03:30:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2022-11-03 03:30:51,687 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2022-11-03 03:30:51,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:51,688 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2022-11-03 03:30:51,688 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 03:30:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2022-11-03 03:30:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:30:51,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:51,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:51,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:51,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-03 03:30:51,911 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:51,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:51,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1337635293, now seen corresponding path program 1 times [2022-11-03 03:30:51,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:51,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020274190] [2022-11-03 03:30:51,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:51,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:51,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:51,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923403725] [2022-11-03 03:30:51,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:51,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:51,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:51,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:51,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:30:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:52,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:30:52,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:52,101 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 03:30:52,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:30:52,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:52,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020274190] [2022-11-03 03:30:52,102 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:52,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923403725] [2022-11-03 03:30:52,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923403725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:52,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:52,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:30:52,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127722010] [2022-11-03 03:30:52,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:52,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:30:52,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:30:52,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:30:52,105 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 03:30:52,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:52,159 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2022-11-03 03:30:52,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:30:52,159 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 03:30:52,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:52,160 INFO L225 Difference]: With dead ends: 25 [2022-11-03 03:30:52,160 INFO L226 Difference]: Without dead ends: 19 [2022-11-03 03:30:52,161 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 03:30:52,162 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:52,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 9 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 03:30:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-03 03:30:52,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2022-11-03 03:30:52,166 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 03:30:52,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2022-11-03 03:30:52,167 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2022-11-03 03:30:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:52,167 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2022-11-03 03:30:52,167 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 03:30:52,168 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2022-11-03 03:30:52,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 03:30:52,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:52,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:52,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:52,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:52,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1611921030, now seen corresponding path program 1 times [2022-11-03 03:30:52,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:52,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992258633] [2022-11-03 03:30:52,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:52,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:52,434 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:52,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036675346] [2022-11-03 03:30:52,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:52,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:52,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:52,461 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:52,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:30:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:52,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-03 03:30:52,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:52,572 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 03:30:52,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:30:52,595 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 03:30:52,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:52,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992258633] [2022-11-03 03:30:52,596 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:52,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036675346] [2022-11-03 03:30:52,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036675346] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:30:52,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1557420158] [2022-11-03 03:30:52,615 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:30:52,615 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:30:52,618 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:30:52,623 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:30:52,624 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:30:52,810 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:30:52,811 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 03:30:52,846 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:30:52,877 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 03:30:52,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:52,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:30:53,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:53,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,471 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 03:30:53,471 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 502 treesize of output 519 [2022-11-03 03:30:53,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:53,776 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 03:30:53,803 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:30:54,170 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) (<= 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) (<= ~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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:30:54,170 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:30:54,170 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:30:54,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-11-03 03:30:54,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646344865] [2022-11-03 03:30:54,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:30:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:30:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:54,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:30:54,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:30:54,173 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 03:30:54,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:54,277 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-03 03:30:54,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:30:54,277 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 03:30:54,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:54,278 INFO L225 Difference]: With dead ends: 29 [2022-11-03 03:30:54,278 INFO L226 Difference]: Without dead ends: 24 [2022-11-03 03:30:54,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:30:54,280 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 03:30:54,280 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 03:30:54,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-03 03:30:54,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2022-11-03 03:30:54,284 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 03:30:54,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-03 03:30:54,285 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 8 [2022-11-03 03:30:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:54,285 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-03 03:30:54,285 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 03:30:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-03 03:30:54,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 03:30:54,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:54,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:54,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:54,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:54,505 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:54,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1565286172, now seen corresponding path program 1 times [2022-11-03 03:30:54,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:54,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005209575] [2022-11-03 03:30:54,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:54,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:54,535 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:54,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550457458] [2022-11-03 03:30:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:54,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:54,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:54,536 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:54,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:30:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:54,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-03 03:30:54,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:54,687 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 03:30:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:54,694 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 03:30:54,697 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 03:30:54,716 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 03:30:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:54,749 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 03:30:54,798 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 03:30:54,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:30:54,963 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_115 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_115) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2022-11-03 03:30:54,974 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 03:30:54,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:54,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005209575] [2022-11-03 03:30:54,975 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:54,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550457458] [2022-11-03 03:30:54,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550457458] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:30:54,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1401726810] [2022-11-03 03:30:54,978 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:30:54,978 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:30:54,978 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:30:54,979 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:30:54,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:30:55,070 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:30:55,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:30:55,215 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:30:55,216 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 03:30:55,237 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 03:30:55,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:30:55,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,553 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:30:55,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:30:55,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,678 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 03:30:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,705 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:30:55,705 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 91 treesize of output 94 [2022-11-03 03:30:55,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,767 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,781 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,797 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:30:55,798 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 212 treesize of output 193 [2022-11-03 03:30:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:55,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:55,852 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:30:55,853 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 91 treesize of output 94 [2022-11-03 03:30:55,871 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:30:56,213 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) (<= 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) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:30:56,213 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:30:56,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:30:56,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-03 03:30:56,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787468456] [2022-11-03 03:30:56,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:30:56,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:30:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:30:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=171, Unknown=1, NotChecked=26, Total=240 [2022-11-03 03:30:56,215 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 03:30:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:56,380 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-03 03:30:56,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 03:30:56,381 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 03:30:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:56,381 INFO L225 Difference]: With dead ends: 30 [2022-11-03 03:30:56,382 INFO L226 Difference]: Without dead ends: 28 [2022-11-03 03:30:56,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=271, Unknown=1, NotChecked=34, Total=380 [2022-11-03 03:30:56,383 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 29 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:56,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 19 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 29 Unchecked, 0.1s Time] [2022-11-03 03:30:56,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-03 03:30:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 15. [2022-11-03 03:30:56,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 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 03:30:56,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2022-11-03 03:30:56,389 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 9 [2022-11-03 03:30:56,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:56,394 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-11-03 03:30:56,395 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 03:30:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-11-03 03:30:56,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:30:56,395 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:56,396 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:56,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:56,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:56,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:56,601 INFO L85 PathProgramCache]: Analyzing trace with hash -978676906, now seen corresponding path program 1 times [2022-11-03 03:30:56,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:56,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287246831] [2022-11-03 03:30:56,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:56,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:56,617 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:56,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099324961] [2022-11-03 03:30:56,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:56,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:56,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:56,618 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:56,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 03:30:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:30:56,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 03:30:56,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:56,741 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 03:30:56,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:30:56,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:56,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287246831] [2022-11-03 03:30:56,744 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:56,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099324961] [2022-11-03 03:30:56,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099324961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:30:56,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:30:56,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:30:56,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968246709] [2022-11-03 03:30:56,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:30:56,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:30:56,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:56,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:30:56,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:30:56,748 INFO L87 Difference]: Start difference. First operand 15 states and 19 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 03:30:56,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:56,827 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-03 03:30:56,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:30:56,828 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 03:30:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:56,829 INFO L225 Difference]: With dead ends: 29 [2022-11-03 03:30:56,829 INFO L226 Difference]: Without dead ends: 19 [2022-11-03 03:30:56,830 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 03:30:56,832 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:56,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:30:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-03 03:30:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2022-11-03 03:30:56,836 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 03:30:56,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2022-11-03 03:30:56,836 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 10 [2022-11-03 03:30:56,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:56,837 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2022-11-03 03:30:56,837 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 03:30:56,837 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-11-03 03:30:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 03:30:56,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:56,838 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:56,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:57,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:57,039 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:57,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:57,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1274461626, now seen corresponding path program 2 times [2022-11-03 03:30:57,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:57,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376903172] [2022-11-03 03:30:57,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:57,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:57,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:57,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431214411] [2022-11-03 03:30:57,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:30:57,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:57,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:57,078 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:57,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 03:30:57,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 03:30:57,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:30:57,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:30:57,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:57,231 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 03:30:57,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:30:57,263 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 03:30:57,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:57,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376903172] [2022-11-03 03:30:57,264 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:57,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431214411] [2022-11-03 03:30:57,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431214411] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:30:57,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [604316551] [2022-11-03 03:30:57,266 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:30:57,267 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:30:57,267 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:30:57,267 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:30:57,267 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:30:57,395 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:30:57,395 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 03:30:57,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:30:57,451 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 03:30:57,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:57,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:30:57,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,695 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:57,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:57,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,773 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:30:57,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:30:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,898 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 03:30:57,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:57,938 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:30:57,939 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 24 treesize of output 27 [2022-11-03 03:30:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:57,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:57,997 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:30:57,998 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 91 treesize of output 94 [2022-11-03 03:30:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:30:58,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:58,051 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:30:58,052 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 91 treesize of output 94 [2022-11-03 03:30:58,100 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:30:58,563 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '608#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:30:58,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:30:58,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:30:58,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-11-03 03:30:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105023207] [2022-11-03 03:30:58,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:30:58,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:30:58,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:30:58,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:30:58,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:30:58,565 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:30:58,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:30:58,647 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2022-11-03 03:30:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:30:58,648 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 03:30:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:30:58,648 INFO L225 Difference]: With dead ends: 33 [2022-11-03 03:30:58,649 INFO L226 Difference]: Without dead ends: 27 [2022-11-03 03:30:58,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:30:58,650 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:30:58,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:30:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-03 03:30:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2022-11-03 03:30:58,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 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 03:30:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-11-03 03:30:58,655 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2022-11-03 03:30:58,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:30:58,655 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-11-03 03:30:58,655 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 03:30:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-11-03 03:30:58,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 03:30:58,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:30:58,656 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:30:58,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 03:30:58,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:58,861 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:30:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:30:58,862 INFO L85 PathProgramCache]: Analyzing trace with hash -746752909, now seen corresponding path program 3 times [2022-11-03 03:30:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:30:58,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939241073] [2022-11-03 03:30:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:30:58,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:30:58,892 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:30:58,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1313785548] [2022-11-03 03:30:58,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:30:58,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:30:58,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:30:58,894 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:30:58,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 03:30:59,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:30:59,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:30:59,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 03:30:59,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:30:59,241 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-03 03:30:59,242 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 03:30:59,251 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 03:30:59,259 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 03:30:59,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:59,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:30:59,296 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 31 treesize of output 5 [2022-11-03 03:30:59,301 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 03:30:59,310 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 03:30:59,328 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 03:30:59,344 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 03:30:59,378 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 03:30:59,386 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-11-03 03:30:59,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 111 [2022-11-03 03:30:59,408 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:30:59,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-03 03:30:59,482 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 03:30:59,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:30:59,784 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_218 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_218) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2022-11-03 03:30:59,802 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 03:30:59,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:30:59,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939241073] [2022-11-03 03:30:59,803 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:30:59,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313785548] [2022-11-03 03:30:59,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313785548] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:30:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1502792409] [2022-11-03 03:30:59,807 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:30:59,807 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:30:59,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:30:59,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:30:59,808 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:30:59,935 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:30:59,935 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 03:30:59,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:30:59,990 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 03:31:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:31:00,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,341 INFO L356 Elim1Store]: treesize reduction 246, result has 10.5 percent of original size [2022-11-03 03:31:00,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 508 treesize of output 516 [2022-11-03 03:31:00,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,555 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 03:31:00,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,580 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:00,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2022-11-03 03:31:00,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,657 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:31:00,658 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 212 treesize of output 193 [2022-11-03 03:31:00,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:00,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:00,701 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:00,701 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 91 treesize of output 94 [2022-11-03 03:31:00,717 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:01,037 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '764#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:31:01,037 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:01,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:01,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2022-11-03 03:31:01,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085815568] [2022-11-03 03:31:01,037 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:01,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 03:31:01,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:01,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 03:31:01,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=222, Unknown=1, NotChecked=30, Total=306 [2022-11-03 03:31:01,039 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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 03:31:03,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-03 03:31:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:03,930 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-11-03 03:31:03,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:31:03,931 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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 03:31:03,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:03,931 INFO L225 Difference]: With dead ends: 41 [2022-11-03 03:31:03,931 INFO L226 Difference]: Without dead ends: 39 [2022-11-03 03:31:03,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=105, Invalid=450, Unknown=1, NotChecked=44, Total=600 [2022-11-03 03:31:03,933 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 26 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:03,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 50 Invalid, 1 Unknown, 68 Unchecked, 2.7s Time] [2022-11-03 03:31:03,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-03 03:31:03,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 19. [2022-11-03 03:31:03,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 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 03:31:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2022-11-03 03:31:03,939 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2022-11-03 03:31:03,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:03,939 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2022-11-03 03:31:03,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 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 03:31:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2022-11-03 03:31:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 03:31:03,940 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:03,940 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:03,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-03 03:31:04,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 03:31:04,145 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:04,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash 985561389, now seen corresponding path program 1 times [2022-11-03 03:31:04,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:04,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164673079] [2022-11-03 03:31:04,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:04,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:04,165 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:04,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145297545] [2022-11-03 03:31:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:04,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:04,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:04,167 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:04,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 03:31:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:04,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-03 03:31:04,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:04,352 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 03:31:04,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:04,360 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 03:31:04,367 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 03:31:04,371 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 03:31:04,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:04,399 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:31:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:04,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-03 03:31:04,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 29 [2022-11-03 03:31:04,605 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 03:31:04,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:05,112 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 03:31:05,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164673079] [2022-11-03 03:31:05,113 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145297545] [2022-11-03 03:31:05,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145297545] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:05,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [534611681] [2022-11-03 03:31:05,115 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:31:05,116 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:05,116 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:05,116 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:05,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:05,247 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:31:05,248 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 03:31:05,331 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:31:05,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:31:05,467 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:05,467 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 03:31:05,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:05,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:05,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:05,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,763 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:05,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 546 treesize of output 515 [2022-11-03 03:31:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,875 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 03:31:05,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,896 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:05,896 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 24 treesize of output 27 [2022-11-03 03:31:05,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:05,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:05,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:06,011 INFO L356 Elim1Store]: treesize reduction 254, result has 10.2 percent of original size [2022-11-03 03:31:06,012 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 148 treesize of output 179 [2022-11-03 03:31:06,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:06,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:06,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:06,080 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:06,080 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 91 treesize of output 94 [2022-11-03 03:31:06,206 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:06,762 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '954#(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 03:31:06,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:06,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:06,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2022-11-03 03:31:06,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275054147] [2022-11-03 03:31:06,763 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:06,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:31:06,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:06,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:31:06,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2022-11-03 03:31:06,765 INFO L87 Difference]: Start difference. First operand 19 states and 25 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 03:31:06,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:06,961 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-11-03 03:31:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 03:31:06,962 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 03:31:06,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:06,962 INFO L225 Difference]: With dead ends: 26 [2022-11-03 03:31:06,962 INFO L226 Difference]: Without dead ends: 24 [2022-11-03 03:31:06,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2022-11-03 03:31:06,964 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:06,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2022-11-03 03:31:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-03 03:31:06,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-03 03:31:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 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 03:31:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2022-11-03 03:31:06,970 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 28 transitions. Word has length 12 [2022-11-03 03:31:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:06,970 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-11-03 03:31:06,970 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 03:31:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-11-03 03:31:06,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:31:06,971 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:06,971 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:06,980 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-03 03:31:07,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:07,176 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:07,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:07,177 INFO L85 PathProgramCache]: Analyzing trace with hash -522629517, now seen corresponding path program 4 times [2022-11-03 03:31:07,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:07,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136826113] [2022-11-03 03:31:07,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:07,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:07,234 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:07,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3209453] [2022-11-03 03:31:07,245 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 03:31:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:07,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:07,247 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:07,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 03:31:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:07,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:31:07,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:07,372 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 03:31:07,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:07,415 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 03:31:07,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136826113] [2022-11-03 03:31:07,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3209453] [2022-11-03 03:31:07,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3209453] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:07,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [766145019] [2022-11-03 03:31:07,418 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:31:07,418 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:07,418 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:07,419 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:07,419 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:07,561 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:31:07,562 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 03:31:07,681 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:07,681 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 03:31:07,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:31:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:31:07,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:07,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:07,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:07,994 INFO L356 Elim1Store]: treesize reduction 246, result has 10.5 percent of original size [2022-11-03 03:31:07,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 510 treesize of output 516 [2022-11-03 03:31:08,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,131 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 03:31:08,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,150 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:08,150 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 24 treesize of output 27 [2022-11-03 03:31:08,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:08,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:08,282 INFO L356 Elim1Store]: treesize reduction 249, result has 12.0 percent of original size [2022-11-03 03:31:08,282 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 148 treesize of output 184 [2022-11-03 03:31:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:08,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:08,338 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:08,339 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 91 treesize of output 94 [2022-11-03 03:31:08,359 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:08,626 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1122#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:31:08,626 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:08,626 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:08,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2022-11-03 03:31:08,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402223769] [2022-11-03 03:31:08,627 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:08,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:31:08,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:08,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:31:08,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:31:08,628 INFO L87 Difference]: Start difference. First operand 22 states and 28 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 03:31:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:08,841 INFO L93 Difference]: Finished difference Result 61 states and 72 transitions. [2022-11-03 03:31:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 03:31:08,842 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 03:31:08,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:08,845 INFO L225 Difference]: With dead ends: 61 [2022-11-03 03:31:08,845 INFO L226 Difference]: Without dead ends: 43 [2022-11-03 03:31:08,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-11-03 03:31:08,847 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 32 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:08,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 34 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:31:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-03 03:31:08,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 26. [2022-11-03 03:31:08,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:08,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-11-03 03:31:08,861 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 13 [2022-11-03 03:31:08,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:08,862 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-11-03 03:31:08,862 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 03:31:08,862 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-03 03:31:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-03 03:31:08,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:08,863 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:08,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:09,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:09,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:09,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:09,068 INFO L85 PathProgramCache]: Analyzing trace with hash -76388954, now seen corresponding path program 2 times [2022-11-03 03:31:09,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:09,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854783487] [2022-11-03 03:31:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:09,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:09,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:09,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044044214] [2022-11-03 03:31:09,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:31:09,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:09,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:09,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:09,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-03 03:31:09,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-03 03:31:09,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:31:09,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-03 03:31:09,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:31:09,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:31:09,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:09,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854783487] [2022-11-03 03:31:09,316 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:09,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044044214] [2022-11-03 03:31:09,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044044214] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:09,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1797134703] [2022-11-03 03:31:09,318 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:31:09,318 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:09,318 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:09,319 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:09,319 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:09,447 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:09,447 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 03:31:09,475 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 03:31:09,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:31:09,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,533 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:09,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,760 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:09,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 546 treesize of output 515 [2022-11-03 03:31:09,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,854 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 03:31:09,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,887 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:09,887 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 91 treesize of output 94 [2022-11-03 03:31:09,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:09,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:09,975 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:31:09,975 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 212 treesize of output 193 [2022-11-03 03:31:10,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:10,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:10,027 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:10,031 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:10,032 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 91 treesize of output 94 [2022-11-03 03:31:10,191 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:10,594 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1355#(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 03:31:10,594 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:10,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:10,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-11-03 03:31:10,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803670358] [2022-11-03 03:31:10,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:10,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 03:31:10,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:10,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 03:31:10,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-03 03:31:10,596 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 03:31:10,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:10,724 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-03 03:31:10,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 03:31:10,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 13 [2022-11-03 03:31:10,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:10,725 INFO L225 Difference]: With dead ends: 38 [2022-11-03 03:31:10,725 INFO L226 Difference]: Without dead ends: 31 [2022-11-03 03:31:10,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:31:10,726 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 15 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 19 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:31:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-03 03:31:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2022-11-03 03:31:10,731 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 03:31:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-03 03:31:10,732 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 13 [2022-11-03 03:31:10,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:10,732 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-03 03:31:10,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 03:31:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-03 03:31:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:31:10,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:10,733 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:10,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:10,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 03:31:10,933 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:10,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:10,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1419825270, now seen corresponding path program 3 times [2022-11-03 03:31:10,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:10,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930656617] [2022-11-03 03:31:10,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:10,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:10,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:10,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1477413516] [2022-11-03 03:31:10,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:31:10,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:10,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:10,979 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:10,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-03 03:31:11,203 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:31:11,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:31:11,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 44 conjunts are in the unsatisfiable core [2022-11-03 03:31:11,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:11,243 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 03:31:11,243 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 03:31:11,247 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 03:31:11,270 INFO L356 Elim1Store]: treesize reduction 36, result has 28.0 percent of original size [2022-11-03 03:31:11,271 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 64 [2022-11-03 03:31:11,289 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 03:31:11,304 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 03:31:11,307 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 03:31:11,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 30 treesize of output 50 [2022-11-03 03:31:11,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:11,344 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 25 treesize of output 3 [2022-11-03 03:31:11,390 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 03:31:11,449 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 72 treesize of output 68 [2022-11-03 03:31:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,460 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 03:31:11,467 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:31:11,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,524 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:31:11,579 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 149 treesize of output 137 [2022-11-03 03:31:11,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:11,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,592 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 130 treesize of output 212 [2022-11-03 03:31:11,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,656 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 119 treesize of output 49 [2022-11-03 03:31:11,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:11,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:31:11,872 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 03:31:11,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:13,672 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 03:31:13,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930656617] [2022-11-03 03:31:13,673 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477413516] [2022-11-03 03:31:13,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477413516] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:13,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [482186872] [2022-11-03 03:31:13,675 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:31:13,675 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:13,675 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:13,676 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:13,676 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:13,816 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:31:13,816 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 03:31:13,894 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:31:13,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:31:14,027 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:14,028 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 03:31:14,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:14,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,328 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:14,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:31:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,425 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 03:31:14,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,443 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:14,443 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 24 treesize of output 27 [2022-11-03 03:31:14,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,558 INFO L356 Elim1Store]: treesize reduction 254, result has 10.2 percent of original size [2022-11-03 03:31:14,559 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 148 treesize of output 179 [2022-11-03 03:31:14,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:14,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:14,607 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:14,607 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 91 treesize of output 94 [2022-11-03 03:31:14,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:15,236 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1556#(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 03:31:15,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:15,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:15,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 18 [2022-11-03 03:31:15,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6271581] [2022-11-03 03:31:15,236 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:15,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-03 03:31:15,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:15,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-03 03:31:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-11-03 03:31:15,238 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 03:31:15,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:15,539 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-11-03 03:31:15,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:31:15,539 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 03:31:15,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:15,540 INFO L225 Difference]: With dead ends: 36 [2022-11-03 03:31:15,540 INFO L226 Difference]: Without dead ends: 34 [2022-11-03 03:31:15,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=117, Invalid=639, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:31:15,541 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:15,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 30 Unchecked, 0.0s Time] [2022-11-03 03:31:15,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-03 03:31:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2022-11-03 03:31:15,549 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 03:31:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2022-11-03 03:31:15,550 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2022-11-03 03:31:15,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:15,551 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2022-11-03 03:31:15,551 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 03:31:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-11-03 03:31:15,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 03:31:15,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:15,552 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:15,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-03 03:31:15,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 03:31:15,758 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:15,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:15,758 INFO L85 PathProgramCache]: Analyzing trace with hash 916648218, now seen corresponding path program 5 times [2022-11-03 03:31:15,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:15,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076811790] [2022-11-03 03:31:15,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:15,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:15,801 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:15,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1667619091] [2022-11-03 03:31:15,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:31:15,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:15,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:15,803 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:15,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-03 03:31:16,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 03:31:16,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:31:16,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 03:31:16,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:16,183 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 03:31:16,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:16,271 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 03:31:16,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076811790] [2022-11-03 03:31:16,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667619091] [2022-11-03 03:31:16,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667619091] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:16,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1475112686] [2022-11-03 03:31:16,273 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:31:16,273 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:16,273 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:16,273 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:16,273 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:16,355 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:31:16,355 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:31:16,486 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:16,486 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 03:31:16,505 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 03:31:16,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:16,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:16,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:16,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:16,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,783 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:16,784 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:31:16,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,894 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 03:31:16,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,913 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:16,917 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:16,918 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 91 treesize of output 94 [2022-11-03 03:31:16,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:16,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:16,993 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:17,005 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:31:17,006 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 212 treesize of output 193 [2022-11-03 03:31:17,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:17,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:17,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:17,048 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:17,049 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 91 treesize of output 94 [2022-11-03 03:31:17,064 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:17,382 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1767#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:31:17,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:17,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:17,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2022-11-03 03:31:17,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736931309] [2022-11-03 03:31:17,383 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:17,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 03:31:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 03:31:17,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-11-03 03:31:17,384 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 03:31:17,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:17,696 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2022-11-03 03:31:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:31:17,697 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 03:31:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:17,698 INFO L225 Difference]: With dead ends: 71 [2022-11-03 03:31:17,698 INFO L226 Difference]: Without dead ends: 63 [2022-11-03 03:31:17,699 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 03:31:17,699 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:17,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 60 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 03:31:17,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-03 03:31:17,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 39. [2022-11-03 03:31:17,711 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 03:31:17,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2022-11-03 03:31:17,711 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 14 [2022-11-03 03:31:17,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:17,712 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-11-03 03:31:17,712 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 03:31:17,712 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-11-03 03:31:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 03:31:17,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:17,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:17,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-03 03:31:17,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:17,917 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:17,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:17,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1710382253, now seen corresponding path program 6 times [2022-11-03 03:31:17,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:17,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16756548] [2022-11-03 03:31:17,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:17,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:17,937 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:17,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719489042] [2022-11-03 03:31:17,937 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:31:17,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:17,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:17,939 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:17,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-03 03:31:18,823 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:31:18,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:31:18,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 03:31:18,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:18,837 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 03:31:18,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:18,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-03 03:31:18,859 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 03:31:18,862 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 03:31:18,869 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 03:31:18,886 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 21 treesize of output 21 [2022-11-03 03:31:18,908 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 03:31:18,940 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 03:31:18,961 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 03:31:19,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,004 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 03:31:19,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,028 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 03:31:19,062 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 03:31:19,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,068 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 03:31:19,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,091 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 85 treesize of output 26 [2022-11-03 03:31:19,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:19,114 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 03:31:19,153 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 03:31:19,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:19,957 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_511 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_511) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2022-11-03 03:31:19,974 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 03:31:19,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16756548] [2022-11-03 03:31:19,974 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:19,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719489042] [2022-11-03 03:31:19,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719489042] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:19,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1695801404] [2022-11-03 03:31:19,976 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:31:19,976 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:19,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:19,977 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:19,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:20,054 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:31:20,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:31:20,177 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:20,177 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 03:31:20,193 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 03:31:20,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:20,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,460 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:20,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:31:20,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,558 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 03:31:20,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,580 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:20,580 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2022-11-03 03:31:20,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,630 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,709 INFO L356 Elim1Store]: treesize reduction 254, result has 10.2 percent of original size [2022-11-03 03:31:20,709 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 148 treesize of output 179 [2022-11-03 03:31:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:20,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:20,762 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:20,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2022-11-03 03:31:20,785 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:21,119 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2063#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:31:21,119 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:21,119 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:21,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 20 [2022-11-03 03:31:21,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661439503] [2022-11-03 03:31:21,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:21,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 03:31:21,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:21,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 03:31:21,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=441, Unknown=1, NotChecked=44, Total=600 [2022-11-03 03:31:21,122 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 03:31:21,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:21,753 INFO L93 Difference]: Finished difference Result 86 states and 104 transitions. [2022-11-03 03:31:21,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 03:31:21,754 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 03:31:21,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:21,754 INFO L225 Difference]: With dead ends: 86 [2022-11-03 03:31:21,754 INFO L226 Difference]: Without dead ends: 84 [2022-11-03 03:31:21,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 296 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=202, Invalid=920, Unknown=4, NotChecked=64, Total=1190 [2022-11-03 03:31:21,756 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 41 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 128 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:21,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 38 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 127 Invalid, 0 Unknown, 128 Unchecked, 0.2s Time] [2022-11-03 03:31:21,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-03 03:31:21,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 47. [2022-11-03 03:31:21,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 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 03:31:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2022-11-03 03:31:21,771 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 15 [2022-11-03 03:31:21,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:21,771 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2022-11-03 03:31:21,772 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 03:31:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2022-11-03 03:31:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 03:31:21,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:21,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:21,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:21,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-03 03:31:21,981 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash 724259981, now seen corresponding path program 4 times [2022-11-03 03:31:21,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:21,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199893821] [2022-11-03 03:31:21,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:21,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:22,001 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:22,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784972153] [2022-11-03 03:31:22,002 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 03:31:22,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:22,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:22,003 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:22,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-03 03:31:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:22,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-03 03:31:22,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:22,475 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 03:31:22,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,483 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 03:31:22,488 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 03:31:22,491 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 19 treesize of output 18 [2022-11-03 03:31:22,523 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 72 treesize of output 68 [2022-11-03 03:31:22,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,532 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 03:31:22,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,559 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 85 treesize of output 26 [2022-11-03 03:31:22,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:31:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:31:22,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 137 [2022-11-03 03:31:22,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:22,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,693 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 130 treesize of output 212 [2022-11-03 03:31:22,715 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:31:22,816 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 190 treesize of output 176 [2022-11-03 03:31:22,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,827 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 101 treesize of output 174 [2022-11-03 03:31:22,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,869 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 110 treesize of output 58 [2022-11-03 03:31:22,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:22,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:31:23,098 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 03:31:23,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:31,518 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 03:31:31,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:31,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199893821] [2022-11-03 03:31:31,518 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:31,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784972153] [2022-11-03 03:31:31,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784972153] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:31,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [693436009] [2022-11-03 03:31:31,521 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:31:31,521 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:31,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:31,521 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:31,522 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:31,667 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:31,668 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 03:31:31,683 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 03:31:31,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:31:31,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:31,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:31,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:31,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:31,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:31,986 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:31,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:31:32,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,081 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 03:31:32,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:32,109 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:32,109 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 91 treesize of output 94 [2022-11-03 03:31:32,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:32,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:32,186 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:31:32,187 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 212 treesize of output 193 [2022-11-03 03:31:32,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:32,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:32,239 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:32,240 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 91 treesize of output 94 [2022-11-03 03:31:32,374 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:32,893 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2414#(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 03:31:32,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:32,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:32,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 22 [2022-11-03 03:31:32,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354790729] [2022-11-03 03:31:32,894 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:32,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-03 03:31:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-03 03:31:32,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2022-11-03 03:31:32,895 INFO L87 Difference]: Start difference. First operand 47 states and 61 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 03:31:33,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:33,275 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2022-11-03 03:31:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:31:33,276 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 03:31:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:33,277 INFO L225 Difference]: With dead ends: 68 [2022-11-03 03:31:33,278 INFO L226 Difference]: Without dead ends: 66 [2022-11-03 03:31:33,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930 [2022-11-03 03:31:33,279 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:33,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 52 Unchecked, 0.0s Time] [2022-11-03 03:31:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-03 03:31:33,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2022-11-03 03:31:33,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 54 states have internal predecessors, (72), 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 03:31:33,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 72 transitions. [2022-11-03 03:31:33,300 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 72 transitions. Word has length 16 [2022-11-03 03:31:33,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:33,300 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 72 transitions. [2022-11-03 03:31:33,300 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 03:31:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 72 transitions. [2022-11-03 03:31:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:31:33,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:33,301 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:33,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:33,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-03 03:31:33,507 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:33,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:33,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1181831571, now seen corresponding path program 5 times [2022-11-03 03:31:33,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:33,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369152558] [2022-11-03 03:31:33,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:33,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:33,522 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:33,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265250134] [2022-11-03 03:31:33,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:31:33,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:33,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:33,524 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:33,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-03 03:31:33,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-03 03:31:33,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:31:33,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-03 03:31:33,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:33,943 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 03:31:33,943 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 03:31:33,949 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 03:31:33,982 INFO L356 Elim1Store]: treesize reduction 34, result has 34.6 percent of original size [2022-11-03 03:31:33,983 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 45 treesize of output 70 [2022-11-03 03:31:34,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2022-11-03 03:31:34,018 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 03:31:34,049 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 12 treesize of output 11 [2022-11-03 03:31:34,090 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 03:31:34,130 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 0 case distinctions, treesize of input 125 treesize of output 117 [2022-11-03 03:31:34,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,141 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 188 [2022-11-03 03:31:34,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:31:34,319 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 161 treesize of output 147 [2022-11-03 03:31:34,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:34,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,337 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 133 treesize of output 215 [2022-11-03 03:31:34,345 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-11-03 03:31:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:34,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:34,483 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:31:34,483 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 68 treesize of output 58 [2022-11-03 03:31:35,070 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-03 03:31:35,071 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 90 treesize of output 46 [2022-11-03 03:31:35,094 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 03:31:35,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:31:50,960 WARN L234 SmtUtils]: Spent 7.36s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:31:50,976 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 03:31:50,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:31:50,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369152558] [2022-11-03 03:31:50,977 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:31:50,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265250134] [2022-11-03 03:31:50,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265250134] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:31:50,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2121185149] [2022-11-03 03:31:50,978 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:31:50,979 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:31:50,979 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:31:50,979 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:31:50,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:31:51,099 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:31:51,099 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 03:31:51,112 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 03:31:51,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:31:51,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:31:51,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,346 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,430 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:31:51,431 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:31:51,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,531 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 03:31:51,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,549 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:51,549 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 24 treesize of output 27 [2022-11-03 03:31:51,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,604 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,702 INFO L356 Elim1Store]: treesize reduction 254, result has 10.2 percent of original size [2022-11-03 03:31:51,703 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 148 treesize of output 179 [2022-11-03 03:31:51,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:31:51,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:51,760 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:31:51,760 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 91 treesize of output 94 [2022-11-03 03:31:51,877 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:31:53,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2751#(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 03:31:53,664 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:31:53,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:31:53,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-03 03:31:53,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754613794] [2022-11-03 03:31:53,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:31:53,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 03:31:53,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:31:53,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 03:31:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=794, Unknown=1, NotChecked=0, Total=930 [2022-11-03 03:31:53,666 INFO L87 Difference]: Start difference. First operand 55 states and 72 transitions. Second operand has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:31:57,642 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2022-11-03 03:31:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 03:31:57,642 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-03 03:31:57,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:31:57,643 INFO L225 Difference]: With dead ends: 73 [2022-11-03 03:31:57,643 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 03:31:57,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 20.2s TimeCoverageRelationStatistics Valid=147, Invalid=908, Unknown=1, NotChecked=0, Total=1056 [2022-11-03 03:31:57,644 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 57 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:31:57,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 70 Invalid, 0 Unknown, 57 Unchecked, 0.4s Time] [2022-11-03 03:31:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 03:31:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 03:31:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 51 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:57,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 66 transitions. [2022-11-03 03:31:57,674 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 66 transitions. Word has length 17 [2022-11-03 03:31:57,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:31:57,675 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 66 transitions. [2022-11-03 03:31:57,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:31:57,675 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2022-11-03 03:31:57,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:31:57,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:31:57,676 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:31:57,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-03 03:31:57,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:57,878 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:31:57,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:31:57,879 INFO L85 PathProgramCache]: Analyzing trace with hash -622524324, now seen corresponding path program 7 times [2022-11-03 03:31:57,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:31:57,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992880014] [2022-11-03 03:31:57,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:31:57,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:31:57,900 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:31:57,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241495664] [2022-11-03 03:31:57,901 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 03:31:57,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:31:57,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:31:57,902 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:31:57,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-03 03:31:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:31:59,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-03 03:31:59,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:31:59,890 INFO L356 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2022-11-03 03:31:59,891 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 03:31:59,898 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 03:31:59,906 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 03:31:59,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:31:59,931 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 31 treesize of output 5 [2022-11-03 03:31:59,934 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 03:31:59,972 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 03:32:00,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,014 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 19 treesize of output 19 [2022-11-03 03:32:00,017 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 03:32:00,040 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 03:32:00,063 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 03:32:00,083 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 03:32:00,109 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 03:32:00,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,147 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 03:32:00,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,172 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 03:32:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,198 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 03:32:00,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,229 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 03:32:00,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:00,261 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 03:32:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:32:00,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:01,724 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_709 (Array Int Int))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| v_ArrVal_709) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) is different from false [2022-11-03 03:32:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 5 not checked. [2022-11-03 03:32:01,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992880014] [2022-11-03 03:32:01,742 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:32:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241495664] [2022-11-03 03:32:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241495664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:01,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132238121] [2022-11-03 03:32:01,743 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:32:01,743 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:32:01,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:32:01,744 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:32:01,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:01,863 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:32:01,863 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 03:32:01,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:32:01,905 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 03:32:01,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:01,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:32:02,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:02,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,079 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:02,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,192 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 03:32:02,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 508 treesize of output 521 [2022-11-03 03:32:02,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,370 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 03:32:02,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,388 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:02,389 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 24 treesize of output 27 [2022-11-03 03:32:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:02,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:02,538 INFO L356 Elim1Store]: treesize reduction 249, result has 12.0 percent of original size [2022-11-03 03:32:02,539 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 148 treesize of output 184 [2022-11-03 03:32:02,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:02,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:02,596 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:02,597 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 91 treesize of output 94 [2022-11-03 03:32:02,614 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:32:03,042 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3085#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:32:03,042 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:32:03,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:32:03,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11] total 23 [2022-11-03 03:32:03,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860003873] [2022-11-03 03:32:03,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:32:03,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-03 03:32:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:03,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-03 03:32:03,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=557, Unknown=1, NotChecked=50, Total=756 [2022-11-03 03:32:03,044 INFO L87 Difference]: Start difference. First operand 52 states and 66 transitions. Second operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 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 03:32:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:03,964 INFO L93 Difference]: Finished difference Result 87 states and 109 transitions. [2022-11-03 03:32:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 03:32:03,965 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 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 17 [2022-11-03 03:32:03,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:03,966 INFO L225 Difference]: With dead ends: 87 [2022-11-03 03:32:03,966 INFO L226 Difference]: Without dead ends: 85 [2022-11-03 03:32:03,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=246, Invalid=1087, Unknown=3, NotChecked=70, Total=1406 [2022-11-03 03:32:03,967 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:03,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 20 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 113 Invalid, 0 Unknown, 79 Unchecked, 0.5s Time] [2022-11-03 03:32:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-03 03:32:03,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 54. [2022-11-03 03:32:03,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.320754716981132) internal successors, (70), 53 states have internal predecessors, (70), 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 03:32:03,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2022-11-03 03:32:03,988 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 17 [2022-11-03 03:32:03,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:03,989 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2022-11-03 03:32:03,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 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 03:32:03,989 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2022-11-03 03:32:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:32:03,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:03,990 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:04,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:04,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-03 03:32:04,195 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:04,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1499444630, now seen corresponding path program 6 times [2022-11-03 03:32:04,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:04,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123962645] [2022-11-03 03:32:04,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:04,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:04,215 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:32:04,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883550610] [2022-11-03 03:32:04,216 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:32:04,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:04,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:04,217 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:04,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-03 03:32:05,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:32:05,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:32:05,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-03 03:32:05,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:05,404 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 03:32:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,410 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 03:32:05,413 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 03:32:05,416 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 03:32:05,422 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 03:32:05,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,448 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:32:05,485 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 72 treesize of output 68 [2022-11-03 03:32:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,491 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 03:32:05,542 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 72 treesize of output 68 [2022-11-03 03:32:05,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,550 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 03:32:05,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,565 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 03:32:05,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,598 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 03:32:05,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-11-03 03:32:05,698 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 89 treesize of output 81 [2022-11-03 03:32:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,707 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 77 treesize of output 142 [2022-11-03 03:32:05,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,726 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 110 treesize of output 38 [2022-11-03 03:32:05,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:32:05,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:05,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-03 03:32:05,989 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 03:32:05,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:38,382 WARN L234 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 120 DAG size of output: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:32:38,394 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 03:32:38,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:38,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123962645] [2022-11-03 03:32:38,395 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:32:38,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883550610] [2022-11-03 03:32:38,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883550610] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:38,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [429638989] [2022-11-03 03:32:38,397 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:32:38,397 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:32:38,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:32:38,398 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:32:38,398 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:38,532 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:32:38,532 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 03:32:38,647 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:32:38,647 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 03:32:38,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:32:38,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,707 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:32:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:38,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:38,929 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:32:38,929 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:32:39,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,027 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 03:32:39,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:39,065 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:39,065 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 91 treesize of output 94 [2022-11-03 03:32:39,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:39,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:39,104 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:39,104 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 91 treesize of output 94 [2022-11-03 03:32:39,210 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:32:40,171 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3473#(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 03:32:40,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:32:40,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:32:40,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 26 [2022-11-03 03:32:40,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075184649] [2022-11-03 03:32:40,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:32:40,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-03 03:32:40,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:40,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-03 03:32:40,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=858, Unknown=3, NotChecked=0, Total=992 [2022-11-03 03:32:40,173 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:42,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:32:42,128 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2022-11-03 03:32:42,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-03 03:32:42,129 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-03 03:32:42,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:32:42,129 INFO L225 Difference]: With dead ends: 88 [2022-11-03 03:32:42,129 INFO L226 Difference]: Without dead ends: 86 [2022-11-03 03:32:42,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 34.5s TimeCoverageRelationStatistics Valid=179, Invalid=1078, Unknown=3, NotChecked=0, Total=1260 [2022-11-03 03:32:42,131 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:32:42,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 58 Unchecked, 0.2s Time] [2022-11-03 03:32:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-03 03:32:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 62. [2022-11-03 03:32:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 61 states have internal predecessors, (86), 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 03:32:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 86 transitions. [2022-11-03 03:32:42,156 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 86 transitions. Word has length 18 [2022-11-03 03:32:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:32:42,157 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 86 transitions. [2022-11-03 03:32:42,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:32:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 86 transitions. [2022-11-03 03:32:42,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 03:32:42,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:32:42,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 03:32:42,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-03 03:32:42,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-03 03:32:42,379 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:32:42,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:32:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1481457124, now seen corresponding path program 7 times [2022-11-03 03:32:42,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:32:42,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618987391] [2022-11-03 03:32:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:32:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:32:42,401 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:32:42,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [834926093] [2022-11-03 03:32:42,401 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 03:32:42,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:32:42,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:32:42,403 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:32:42,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-03 03:32:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:32:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 56 conjunts are in the unsatisfiable core [2022-11-03 03:32:42,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:32:43,014 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 03:32:43,015 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 03:32:43,049 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-11-03 03:32:43,049 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 03:32:43,058 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 03:32:43,075 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 03:32:43,112 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 03:32:43,122 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 23 treesize of output 16 [2022-11-03 03:32:43,125 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 03:32:43,145 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 03:32:43,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-03 03:32:43,249 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 81 treesize of output 75 [2022-11-03 03:32:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,262 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 133 [2022-11-03 03:32:43,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-03 03:32:43,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,428 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 0 case distinctions, treesize of input 48 treesize of output 45 [2022-11-03 03:32:43,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:43,483 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:32:43,483 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 63 treesize of output 57 [2022-11-03 03:32:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:43,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:43,539 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:32:43,539 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 69 treesize of output 68 [2022-11-03 03:32:43,852 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 03:32:43,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:32:57,391 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse60 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse24 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse61 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse58 (* 8 .cse61)) (.cse59 (* .cse24 8)) (.cse25 (<= .cse61 2147483647)) (.cse30 (<= .cse60 2147483647)) (.cse57 (* .cse60 8)) (.cse56 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse38 (<= .cse56 2147483647)) (.cse27 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse29 (not .cse30)) (.cse0 (not .cse25)) (.cse9 (+ .cse59 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse23 (+ .cse59 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (+ .cse58 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse36 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse26 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse37 (* 8 .cse56))) (and (or (let ((.cse28 (+ 2 (select .cse26 (+ .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (let ((.cse8 (store .cse26 .cse27 .cse28))) (and (or .cse0 (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= 5 (let ((.cse7 (store (store .cse8 .cse9 v_ArrVal_852) .cse10 v_ArrVal_854))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse5 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 (+ 2 .cse1 .cse5))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse5)))))))) (or (let ((.cse11 (<= .cse24 2147483647))) (and (or (not .cse11) (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= 5 (let ((.cse16 (store (store .cse8 .cse9 v_ArrVal_852) .cse17 v_ArrVal_854))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse12 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse12 .cse13 (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse15 .cse4 (+ .cse12 .cse13 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6))))))))) (or .cse11 (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= (let ((.cse22 (store (store .cse8 .cse23 v_ArrVal_852) .cse17 v_ArrVal_854))) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse22))) (let ((.cse20 (select .cse19 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse18 (select .cse22 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse21 (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ .cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse20 .cse4 (+ .cse18 2 .cse21))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse21))))) 5))))) .cse25))) .cse29) (or .cse30 (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= (let ((.cse35 (store (store (store .cse26 .cse36 .cse28) .cse23 v_ArrVal_852) .cse17 v_ArrVal_854))) (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse35))) (let ((.cse33 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse31 (select .cse33 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse34 (select .cse35 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse31 (select (select (store .cse32 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse33 .cse4 (+ .cse31 .cse34 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse34))))) 5))))) (not .cse38)) (or .cse38 (let ((.cse44 (+ (select .cse26 (+ (- 34359738368) .cse37 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= 5 (let ((.cse43 (store (store (store .cse26 .cse27 .cse44) .cse9 v_ArrVal_852) .cse10 v_ArrVal_854))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43))) (let ((.cse40 (select .cse39 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse40 .cse4 (+ 2 .cse41 .cse42))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse41 .cse42))))))) .cse29) (or (let ((.cse50 (store .cse26 .cse36 .cse44))) (and (or .cse0 (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= 5 (let ((.cse49 (store (store .cse50 .cse9 v_ArrVal_852) .cse10 v_ArrVal_854))) (let ((.cse46 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse49))) (let ((.cse47 (select .cse46 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse45 (select .cse47 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse48 (select .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse45 (select (select (store .cse46 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse47 .cse4 (+ .cse45 2 .cse48))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse48)))))))) (or (forall ((v_ArrVal_852 Int) (v_ArrVal_854 Int)) (= (let ((.cse55 (store (store .cse50 .cse23 v_ArrVal_852) .cse17 v_ArrVal_854))) (let ((.cse53 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55))) (let ((.cse54 (select .cse53 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse51 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse52 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse51 .cse52 (select (select (store .cse53 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse54 .cse4 (+ .cse51 .cse52 2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)) .cse25))) .cse30)))))))) is different from false [2022-11-03 03:32:57,897 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 03:32:57,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:32:57,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618987391] [2022-11-03 03:32:57,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:32:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834926093] [2022-11-03 03:32:57,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834926093] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:32:57,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1110355848] [2022-11-03 03:32:57,902 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:32:57,902 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:32:57,903 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:32:57,903 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:32:57,903 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:32:57,991 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:32:57,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:32:58,111 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:32:58,112 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 03:32:58,244 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:32:58,245 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 03:32:58,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:32:58,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,498 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:32:58,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 575 treesize of output 517 [2022-11-03 03:32:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,590 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 03:32:58,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,623 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:58,623 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 24 treesize of output 27 [2022-11-03 03:32:58,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,668 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:58,668 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 91 treesize of output 94 [2022-11-03 03:32:58,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:32:58,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:32:58,722 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:32:58,723 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 91 treesize of output 94 [2022-11-03 03:32:58,826 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:32:59,502 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3873#(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 03:32:59,503 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:32:59,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:32:59,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-11-03 03:32:59,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005936995] [2022-11-03 03:32:59,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:32:59,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-03 03:32:59,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:32:59,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-03 03:32:59,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=762, Unknown=2, NotChecked=56, Total=930 [2022-11-03 03:32:59,505 INFO L87 Difference]: Start difference. First operand 62 states and 86 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 03:33:01,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:33:01,219 INFO L93 Difference]: Finished difference Result 79 states and 103 transitions. [2022-11-03 03:33:01,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 03:33:01,219 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 03:33:01,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:33:01,220 INFO L225 Difference]: With dead ends: 79 [2022-11-03 03:33:01,220 INFO L226 Difference]: Without dead ends: 77 [2022-11-03 03:33:01,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=161, Invalid=1031, Unknown=2, NotChecked=66, Total=1260 [2022-11-03 03:33:01,222 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 74 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:33:01,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 45 Invalid, 0 Unknown, 74 Unchecked, 0.3s Time] [2022-11-03 03:33:01,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-03 03:33:01,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 65. [2022-11-03 03:33:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.390625) internal successors, (89), 64 states have internal predecessors, (89), 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 03:33:01,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 89 transitions. [2022-11-03 03:33:01,263 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 89 transitions. Word has length 19 [2022-11-03 03:33:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:33:01,263 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 89 transitions. [2022-11-03 03:33:01,263 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 03:33:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2022-11-03 03:33:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 03:33:01,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:33:01,265 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:33:01,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-03 03:33:01,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-03 03:33:01,479 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:33:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:33:01,480 INFO L85 PathProgramCache]: Analyzing trace with hash 51791853, now seen corresponding path program 8 times [2022-11-03 03:33:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:33:01,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089216939] [2022-11-03 03:33:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:33:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:33:01,502 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:33:01,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354096253] [2022-11-03 03:33:01,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:33:01,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:33:01,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:33:01,504 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:33:01,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-03 03:33:05,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 03:33:05,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:33:05,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-03 03:33:05,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:33:05,571 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-11-03 03:33:05,572 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 03:33:05,576 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 03:33:05,605 INFO L356 Elim1Store]: treesize reduction 32, result has 36.0 percent of original size [2022-11-03 03:33:05,606 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 03:33:05,637 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 03:33:05,655 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 03:33:05,671 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 23 treesize of output 16 [2022-11-03 03:33:05,677 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 03:33:05,698 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 03:33:05,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,764 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 32 [2022-11-03 03:33:05,807 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 87 treesize of output 79 [2022-11-03 03:33:05,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,817 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 03:33:05,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:33:05,982 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 81 treesize of output 75 [2022-11-03 03:33:05,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:05,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 133 [2022-11-03 03:33:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-03 03:33:06,222 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 156 treesize of output 142 [2022-11-03 03:33:06,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:33:06,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,245 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 130 treesize of output 212 [2022-11-03 03:33:06,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,267 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 123 [2022-11-03 03:33:06,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:33:06,402 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:33:06,402 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 55 treesize of output 55 [2022-11-03 03:33:06,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,476 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:33:06,480 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:33:06,480 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 55 treesize of output 55 [2022-11-03 03:33:06,574 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 03:33:06,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 90 [2022-11-03 03:33:06,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,601 INFO L356 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-11-03 03:33:06,601 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 03:33:06,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:06,685 INFO L356 Elim1Store]: treesize reduction 62, result has 37.4 percent of original size [2022-11-03 03:33:06,685 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 98 treesize of output 64 [2022-11-03 03:33:07,160 INFO L356 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-11-03 03:33:07,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 126 treesize of output 141 [2022-11-03 03:33:07,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:07,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:07,412 INFO L356 Elim1Store]: treesize reduction 58, result has 1.7 percent of original size [2022-11-03 03:33:07,413 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 72 treesize of output 121 [2022-11-03 03:33:07,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2022-11-03 03:33:07,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:07,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:33:07,729 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 03:33:24,931 WARN L234 SmtUtils]: Spent 16.68s on a formula simplification. DAG size of input: 125 DAG size of output: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:33:25,248 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-03 03:33:25,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 59 treesize of output 35 [2022-11-03 03:33:25,274 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 03:33:25,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:33:38,155 WARN L234 SmtUtils]: Spent 6.03s 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 03:34:03,262 WARN L234 SmtUtils]: Spent 16.54s 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 03:34:46,231 WARN L234 SmtUtils]: Spent 34.01s 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 03:36:26,314 WARN L234 SmtUtils]: Spent 1.43m 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 03:37:06,622 WARN L234 SmtUtils]: Spent 19.34s on a formula simplification. DAG size of input: 105 DAG size of output: 104 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:37:47,508 WARN L234 SmtUtils]: Spent 22.09s on a formula simplification. DAG size of input: 195 DAG size of output: 173 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:38:04,054 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_main_~i~0#1| 4))) (or (<= c_~N~0 .cse0) (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (let ((.cse40 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse62 (mod .cse0 4294967296)) (.cse63 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse64 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse14 (<= .cse64 2147483647)) (.cse61 (* .cse64 8)) (.cse16 (<= .cse63 2147483647)) (.cse57 (* .cse62 8)) (.cse58 (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) (.cse59 (* 8 .cse40)) (.cse60 (* .cse63 8)) (.cse32 (<= .cse62 2147483647)) (.cse56 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse44 (<= .cse56 2147483647)) (.cse21 (not .cse32)) (.cse8 (+ .cse60 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse59 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ (- 34359738368) .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (not .cse16)) (.cse6 (+ .cse61 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse14)) (.cse42 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse25 (+ .cse60 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse26 (+ .cse59 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse43 (* 8 .cse56))) (and (or (let ((.cse7 (+ 2 (select .cse5 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse1 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse1 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse4 (store (store (store (store (store .cse5 .cse6 .cse7) .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse2 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse4) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse2 .cse3 (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse14) (or .cse15 (let ((.cse20 (store .cse5 .cse42 .cse7))) (and (or .cse16 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17) c_~N~0) (= (select (store (store (store (store (let ((.cse19 (store (store (store (store .cse20 .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse18 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse18 .cse3 (+ (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) 2)))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (let ((.cse33 (<= .cse40 2147483647))) (and (or .cse21 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22) 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| .cse22 1)) (= (select (store (store (store (store (let ((.cse24 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse23 .cse3 (+ 2 (select .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse29 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse29) 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| .cse29 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= 4 (select (store (store (store (store (let ((.cse31 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse30 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse30 .cse3 (+ (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3))))) .cse32) (or (not .cse33) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse34 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse34) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse34 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 ((.cse36 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse35 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse36) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse35 .cse3 (+ (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (v_ArrVal_931 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_941 Int)) (let ((.cse37 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37 1)) (= (select (store (store (store (store (let ((.cse39 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse38 .cse3 (+ (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|) 2)))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse33))) .cse41)))))) (not .cse44)) (or .cse44 (let ((.cse52 (+ (select .cse5 (+ (- 34359738368) .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse14 (let ((.cse48 (store .cse5 .cse6 .cse52))) (and (or .cse16 (and .cse21 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse45 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse45) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse45 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse47 (store (store (store (store .cse48 .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse46 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse46 .cse3 (+ (select .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|) 2 (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse51 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (store (let ((.cse50 (store (store (store (store .cse48 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse49 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse50) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse49 .cse3 (+ (select .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse51) 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| .cse51 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse41)))) (or .cse15 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 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) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse53 1)) (= 4 (select (store (store (store (store (let ((.cse55 (store (store (store (store (store .cse5 .cse42 .cse52) .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse54 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse54 .cse3 (+ (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|) 2 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))))))))) (<= c_~N~0 1))) is different from true [2022-11-03 03:38:04,114 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,141 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 03:38:04,142 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 463 treesize of output 1 [2022-11-03 03:38:04,143 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 26 refuted. 1 times theorem prover too weak. 0 trivial. 5 not checked. [2022-11-03 03:38:04,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:38:04,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089216939] [2022-11-03 03:38:04,144 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:38:04,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354096253] [2022-11-03 03:38:04,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354096253] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:38:04,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [619162947] [2022-11-03 03:38:04,146 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:38:04,146 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:38:04,147 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:38:04,147 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:38:04,147 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:38:04,252 INFO L356 Elim1Store]: treesize reduction 70, result has 34.0 percent of original size [2022-11-03 03:38:04,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 17 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 109 [2022-11-03 03:38:04,402 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:38:04,402 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 03:38:04,419 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 03:38:04,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,457 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:38:04,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,601 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,691 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:38:04,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 546 treesize of output 515 [2022-11-03 03:38:04,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,799 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 03:38:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,820 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:04,821 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 24 treesize of output 27 [2022-11-03 03:38:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:04,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:05,019 INFO L356 Elim1Store]: treesize reduction 249, result has 12.0 percent of original size [2022-11-03 03:38:05,020 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 148 treesize of output 184 [2022-11-03 03:38:05,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:05,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:38:05,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:38:05,073 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:38:05,073 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 91 treesize of output 94 [2022-11-03 03:38:05,202 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:38:07,807 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4277#(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 03:38:07,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:38:07,807 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:38:07,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2022-11-03 03:38:07,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668025097] [2022-11-03 03:38:07,808 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:38:07,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-03 03:38:07,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:38:07,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-03 03:38:07,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=1111, Unknown=29, NotChecked=70, Total=1406 [2022-11-03 03:38:07,809 INFO L87 Difference]: Start difference. First operand 65 states and 89 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 03:38:09,853 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (let ((.cse1 (+ |c_ULTIMATE.start_main_~i~0#1| 4))) (or (<= c_~N~0 .cse1) (< (+ 5 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (let ((.cse40 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse62 (mod .cse1 4294967296)) (.cse63 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse64 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse14 (<= .cse64 2147483647)) (.cse61 (* .cse64 8)) (.cse16 (<= .cse63 2147483647)) (.cse57 (* .cse62 8)) (.cse58 (* (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8)) (.cse59 (* 8 .cse40)) (.cse60 (* .cse63 8)) (.cse32 (<= .cse62 2147483647)) (.cse56 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse44 (<= .cse56 2147483647)) (.cse21 (not .cse32)) (.cse8 (+ .cse60 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse59 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ (- 34359738368) .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse41 (not .cse16)) (.cse6 (+ .cse61 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (not .cse14)) (.cse42 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse25 (+ .cse60 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse26 (+ .cse59 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (+ .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (+ .cse57 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse43 (* 8 .cse56))) (and (or (let ((.cse7 (+ 2 (select .cse0 (+ .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse2 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse2 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse5 (store (store (store (store (store .cse0 .cse6 .cse7) .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse3 .cse4 (+ (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse5 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse14) (or .cse15 (let ((.cse20 (store .cse0 .cse42 .cse7))) (and (or .cse16 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse17 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17) c_~N~0) (= (select (store (store (store (store (let ((.cse19 (store (store (store (store .cse20 .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse18 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse19) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse18 .cse4 (+ (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|) 2)))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse17 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647))))) (or (let ((.cse33 (<= .cse40 2147483647))) (and (or .cse21 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse22 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse22) 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| .cse22 1)) (= (select (store (store (store (store (let ((.cse24 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse24) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse23 .cse4 (+ 2 (select .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse29 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse29) 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| .cse29 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= 4 (select (store (store (store (store (let ((.cse31 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse30 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse31) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse30 .cse4 (+ (select .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4))))) .cse32) (or (not .cse33) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse34 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse34) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse34 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 ((.cse36 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse35 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse36) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse35 .cse4 (+ (select .cse35 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (v_ArrVal_931 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_941 Int)) (let ((.cse37 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse37 1)) (= (select (store (store (store (store (let ((.cse39 (store (store (store (store .cse20 .cse25 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse38 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse39) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse38 .cse4 (+ (select .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse39 |c_ULTIMATE.start_main_~b~0#1.offset|) 2)))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) .cse33))) .cse41)))))) (not .cse44)) (or .cse44 (let ((.cse52 (+ (select .cse0 (+ (- 34359738368) .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse14 (let ((.cse48 (store .cse0 .cse6 .cse52))) (and (or .cse16 (and .cse21 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse45 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse45) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse45 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store (store (let ((.cse47 (store (store (store (store .cse48 .cse8 v_ArrVal_931) .cse9 v_ArrVal_933) .cse10 v_ArrVal_935) .cse11 v_ArrVal_938))) (let ((.cse46 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse47) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse46 .cse4 (+ (select .cse47 |c_ULTIMATE.start_main_~b~0#1.offset|) 2 (select .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) (or (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 Int)) (let ((.cse51 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (store (let ((.cse50 (store (store (store (store .cse48 .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse49 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse50) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse49 .cse4 (+ (select .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|) 2 (select .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4) 4) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse51) 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| .cse51 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) .cse41)))) (or .cse15 (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_938 Int) (v_ArrVal_948 Int) (v_ArrVal_935 Int) (v_ArrVal_946 Int) (v_ArrVal_933 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_931 Int) (v_ArrVal_941 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) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse53 1)) (= 4 (select (store (store (store (store (let ((.cse55 (store (store (store (store (store .cse0 .cse42 .cse52) .cse25 v_ArrVal_931) .cse26 v_ArrVal_933) .cse27 v_ArrVal_935) .cse28 v_ArrVal_938))) (let ((.cse54 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55) |c_ULTIMATE.start_main_~a~0#1.base|))) (store .cse54 .cse4 (+ (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|) 2 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse12 v_ArrVal_941) .cse13 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse4)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))))))))))) (<= c_~N~0 1))) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (<= c_~N~0 2147483647) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from true [2022-11-03 03:38:19,633 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 95 DAG size of output: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:39:06,358 WARN L234 SmtUtils]: Spent 22.08s 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 03:39:28,143 WARN L234 SmtUtils]: Spent 13.80s on a formula simplification. DAG size of input: 274 DAG size of output: 132 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:40:34,674 WARN L234 SmtUtils]: Spent 34.15s 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) [2022-11-03 03:41:08,147 WARN L234 SmtUtils]: Spent 22.71s on a formula simplification that was a NOOP. DAG size: 189 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:37,118 WARN L234 SmtUtils]: Spent 18.24s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:41:53,718 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse9 (select .cse1 .cse3)) (.cse2 (+ (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (not (< 1 c_~N~0))) (.cse6 (= (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (and (or (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 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) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse1 .cse2 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4) 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| .cse4 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store (store .cse1 .cse2 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4))))) .cse5) (or (and .cse6 (<= (+ (* (div (+ 4294967292 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 4294967296) 3) c_~N~0) (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse7 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (and (= (select .cse7 8) 3) (= (select .cse7 0) 1) (not (= |ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)))))) (and (exists ((v_prenex_105 Int)) (let ((.cse10 (select |c_#memory_int| v_prenex_105))) (let ((.cse8 (select .cse10 0))) (and (= .cse8 1) (= .cse9 (+ 3 .cse8)) (= 3 (select .cse10 8)))))) (<= |c_ULTIMATE.start_main_~i~0#1| c_~N~0) .cse6) (and (<= (+ 2 (* (div (+ |c_ULTIMATE.start_main_~i~0#1| 4294967293) 4294967296) 4294967296)) c_~N~0) (exists ((v_prenex_105 Int)) (let ((.cse11 (select |c_#memory_int| v_prenex_105))) (and (not (= v_prenex_105 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse11 0) 1) (= 3 (select .cse11 8))))))) (= .cse9 4) (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse12 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (and (= (select .cse12 8) 3) (= .cse9 (+ 3 (select .cse12 0)))))) (or (let ((.cse14 (+ (* (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_941 Int)) (let ((.cse13 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse13) 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| .cse13 1)) (= 4 (select (store (store (store (store .cse1 .cse2 v_ArrVal_941) .cse14 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_941 Int)) (let ((.cse15 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (= (select (store (store (store (store .cse1 .cse2 v_ArrVal_941) .cse14 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15) c_~N~0) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse15 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))))) .cse5) .cse6 (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< 5 c_~N~0) (<= c_~N~0 6)))) is different from false [2022-11-03 03:41:55,737 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse5 (= (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (.cse8 (select .cse1 .cse3)) (.cse11 (* 8 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (.cse6 (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse14 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (and (= (select .cse14 8) 3) (= (select .cse14 0) 1) (not (= |ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|))))))) (and (or (let ((.cse2 (+ (* (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 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) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (= (select (store (store (store .cse1 .cse2 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (v_ArrVal_943 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse4 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse4) 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| .cse4 1)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0) (= (select (store (store (store .cse1 .cse2 v_ArrVal_943) (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse3) 4)))))) (not (< 1 c_~N~0))) (or (and .cse5 (<= (+ (* (div (+ 4294967292 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 4294967296) 3) c_~N~0) .cse6) (and (exists ((v_prenex_105 Int)) (let ((.cse9 (select |c_#memory_int| v_prenex_105))) (let ((.cse7 (select .cse9 0))) (and (= .cse7 1) (= .cse8 (+ 3 .cse7)) (= 3 (select .cse9 8)))))) (<= |c_ULTIMATE.start_main_~i~0#1| c_~N~0) .cse5) (and (<= (+ 2 (* (div (+ |c_ULTIMATE.start_main_~i~0#1| 4294967293) 4294967296) 4294967296)) c_~N~0) (exists ((v_prenex_105 Int)) (let ((.cse10 (select |c_#memory_int| v_prenex_105))) (and (not (= v_prenex_105 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse10 0) 1) (= 3 (select .cse10 8))))))) (or (= .cse11 0) .cse5) (or (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse12 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse13 (select .cse12 0))) (and (= (select .cse12 8) 3) (= .cse13 1) (= .cse8 (+ 3 .cse13)))))) (and (= 8 .cse11) .cse6)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< 5 c_~N~0) (<= c_~N~0 6)))) is different from false [2022-11-03 03:41:57,824 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (or (and (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 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) (<= c_~N~0 (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse0 1)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_45|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_45| 2147483647) (= (select (store (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse2) 4)))) (forall ((|aux_div_ULTIMATE.start_main_~i~0#1_45| Int) (v_ArrVal_948 Int) (v_ArrVal_946 Int) (|aux_mod_ULTIMATE.start_main_~i~0#1_45| Int)) (let ((.cse3 (* |aux_div_ULTIMATE.start_main_~i~0#1_45| 4294967296))) (or (< (+ 2 |aux_mod_ULTIMATE.start_main_~i~0#1_45| .cse3) 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| .cse3 1)) (= (select (store (store .cse1 (+ (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_45| 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_946) (+ (* (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_45| 1) 4294967296) 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_948) .cse2) 4) (< |aux_mod_ULTIMATE.start_main_~i~0#1_45| 0))))) (not (< 1 c_~N~0))) (let ((.cse4 (= (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (or (and .cse4 (<= (+ (* (div (+ 4294967292 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 4294967296) 3) c_~N~0) (exists ((|ULTIMATE.start_main_~b~0#1.base| Int)) (let ((.cse5 (select |c_#memory_int| |ULTIMATE.start_main_~b~0#1.base|))) (and (= (select .cse5 8) 3) (= (select .cse5 0) 1) (not (= |ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)))))) (and (exists ((v_prenex_105 Int)) (let ((.cse7 (select |c_#memory_int| v_prenex_105))) (let ((.cse6 (select .cse7 0))) (and (= .cse6 1) (= (select .cse1 .cse2) (+ 3 .cse6)) (= 3 (select .cse7 8)))))) (<= |c_ULTIMATE.start_main_~i~0#1| c_~N~0) .cse4) (and (<= (+ 2 (* (div (+ |c_ULTIMATE.start_main_~i~0#1| 4294967293) 4294967296) 4294967296)) c_~N~0) (exists ((v_prenex_105 Int)) (let ((.cse8 (select |c_#memory_int| v_prenex_105))) (and (not (= v_prenex_105 |c_ULTIMATE.start_main_~a~0#1.base|)) (= (select .cse8 0) 1) (= 3 (select .cse8 8)))))))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< 5 c_~N~0) (<= c_~N~0 6))) is different from false [2022-11-03 03:41:58,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:41:58,149 INFO L93 Difference]: Finished difference Result 111 states and 147 transitions. [2022-11-03 03:41:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-03 03:41:58,149 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 20 [2022-11-03 03:41:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:41:58,150 INFO L225 Difference]: With dead ends: 111 [2022-11-03 03:41:58,151 INFO L226 Difference]: Without dead ends: 109 [2022-11-03 03:41:58,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 508.7s TimeCoverageRelationStatistics Valid=322, Invalid=1780, Unknown=80, NotChecked=470, Total=2652 [2022-11-03 03:41:58,152 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 154 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:41:58,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 61 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 154 Unchecked, 0.2s Time] [2022-11-03 03:41:58,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-03 03:41:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 75. [2022-11-03 03:41:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4189189189189189) internal successors, (105), 74 states have internal predecessors, (105), 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 03:41:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2022-11-03 03:41:58,194 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 20 [2022-11-03 03:41:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:41:58,195 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2022-11-03 03:41:58,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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 03:41:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2022-11-03 03:41:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 03:41:58,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:41:58,196 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 03:41:58,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-03 03:41:58,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:41:58,398 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:41:58,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:41:58,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1080623066, now seen corresponding path program 9 times [2022-11-03 03:41:58,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:41:58,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829916580] [2022-11-03 03:41:58,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:41:58,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:41:58,416 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:41:58,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1011255643] [2022-11-03 03:41:58,417 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-03 03:41:58,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:41:58,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:41:58,418 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:41:58,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-03 03:41:58,545 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-03 03:41:58,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:41:58,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-03 03:41:58,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:41:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 03:41:58,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:41:58,762 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 03:41:58,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:41:58,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829916580] [2022-11-03 03:41:58,762 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:41:58,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011255643] [2022-11-03 03:41:58,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011255643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:41:58,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [521973205] [2022-11-03 03:41:58,764 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:41:58,764 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:41:58,765 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:41:58,765 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:41:58,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:41:58,930 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:41:58,930 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 03:41:58,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:41:58,966 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 03:41:59,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,003 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:41:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:41:59,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:41:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,283 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 03:41:59,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 510 treesize of output 521 [2022-11-03 03:41:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,446 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 03:41:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:41:59,490 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:41:59,491 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 91 treesize of output 94 [2022-11-03 03:41:59,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:41:59,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:41:59,529 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:41:59,529 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 91 treesize of output 94 [2022-11-03 03:41:59,630 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:42:00,309 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4758#(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 03:42:00,309 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:42:00,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:42:00,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2022-11-03 03:42:00,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502651848] [2022-11-03 03:42:00,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:42:00,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 03:42:00,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 03:42:00,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2022-11-03 03:42:00,311 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 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 03:42:01,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:01,328 INFO L93 Difference]: Finished difference Result 140 states and 171 transitions. [2022-11-03 03:42:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-03 03:42:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-03 03:42:01,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:01,330 INFO L225 Difference]: With dead ends: 140 [2022-11-03 03:42:01,330 INFO L226 Difference]: Without dead ends: 117 [2022-11-03 03:42:01,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 31 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=393, Invalid=1499, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 03:42:01,331 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 102 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:01,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 131 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 03:42:01,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-03 03:42:01,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 60. [2022-11-03 03:42:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 59 states have internal predecessors, (80), 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 03:42:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2022-11-03 03:42:01,362 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 20 [2022-11-03 03:42:01,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:01,362 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2022-11-03 03:42:01,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.411764705882353) internal successors, (24), 17 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 03:42:01,363 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2022-11-03 03:42:01,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:42:01,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:01,363 INFO L195 NwaCegarLoop]: trace histogram [10, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:01,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:01,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:01,567 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:01,568 INFO L85 PathProgramCache]: Analyzing trace with hash 825166163, now seen corresponding path program 8 times [2022-11-03 03:42:01,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:01,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987479416] [2022-11-03 03:42:01,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:01,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:01,595 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:42:01,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [462268326] [2022-11-03 03:42:01,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:42:01,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:01,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:42:01,597 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:42:01,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-03 03:42:04,470 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-03 03:42:04,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:42:04,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 03:42:04,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:04,584 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 03:42:04,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 03:42:04,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:42:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987479416] [2022-11-03 03:42:04,702 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:42:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462268326] [2022-11-03 03:42:04,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462268326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:42:04,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [779779760] [2022-11-03 03:42:04,704 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-03 03:42:04,704 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:42:04,704 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:42:04,705 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:42:04,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:42:04,836 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:42:04,837 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 03:42:04,852 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:42:04,868 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 03:42:04,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:04,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:42:05,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,179 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 03:42:05,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 510 treesize of output 521 [2022-11-03 03:42:05,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,282 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 03:42:05,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,305 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:42:05,305 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 91 treesize of output 94 [2022-11-03 03:42:05,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,393 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:42:05,393 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 212 treesize of output 193 [2022-11-03 03:42:05,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:05,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:05,452 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:42:05,453 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 91 treesize of output 94 [2022-11-03 03:42:05,467 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:42:05,845 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5266#(and (= |ULTIMATE.start_main_~a~0#1.offset| 0) (= |ULTIMATE.start_main_~i~0#1| 0) (<= ~N~0 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond#1|) (<= 0 |ULTIMATE.start_assume_abort_if_not_~cond#1|) (< |ULTIMATE.start_main_~i~0#1| ~N~0) (= |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) (= |ULTIMATE.start_main_#t~mem13#1| (select (select |#memory_int| |ULTIMATE.start_main_~a~0#1.base|) (+ |ULTIMATE.start_main_~a~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___VERIFIER_assert_#in~cond#1| (ite (= (+ (* |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)) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_assume_abort_if_not_~cond#1| 1) (= |#NULL.base| 0))' at error location [2022-11-03 03:42:05,846 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:42:05,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:42:05,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2022-11-03 03:42:05,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563111748] [2022-11-03 03:42:05,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:42:05,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 03:42:05,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:42:05,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 03:42:05,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2022-11-03 03:42:05,847 INFO L87 Difference]: Start difference. First operand 60 states and 80 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 03:42:06,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:42:06,454 INFO L93 Difference]: Finished difference Result 115 states and 141 transitions. [2022-11-03 03:42:06,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 03:42:06,455 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 21 [2022-11-03 03:42:06,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:42:06,456 INFO L225 Difference]: With dead ends: 115 [2022-11-03 03:42:06,456 INFO L226 Difference]: Without dead ends: 97 [2022-11-03 03:42:06,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=262, Invalid=998, Unknown=0, NotChecked=0, Total=1260 [2022-11-03 03:42:06,457 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 56 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:42:06,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 68 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:42:06,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-03 03:42:06,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 68. [2022-11-03 03:42:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 67 states have internal predecessors, (87), 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 03:42:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 87 transitions. [2022-11-03 03:42:06,491 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 87 transitions. Word has length 21 [2022-11-03 03:42:06,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:42:06,491 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 87 transitions. [2022-11-03 03:42:06,491 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 03:42:06,492 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-11-03 03:42:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:42:06,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:42:06,492 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2022-11-03 03:42:06,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-03 03:42:06,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-03 03:42:06,693 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:42:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:42:06,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1994729357, now seen corresponding path program 10 times [2022-11-03 03:42:06,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:42:06,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937270487] [2022-11-03 03:42:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:42:06,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:42:06,720 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:42:06,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465456376] [2022-11-03 03:42:06,720 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-03 03:42:06,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:42:06,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:42:06,722 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:42:06,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-11-03 03:42:07,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:42:07,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-03 03:42:07,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:42:07,893 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 03:42:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:07,901 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 03:42:07,904 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 03:42:07,907 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 03:42:07,914 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 03:42:07,952 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 125 treesize of output 117 [2022-11-03 03:42:07,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:07,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:07,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:07,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:07,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:07,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 188 [2022-11-03 03:42:08,078 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 179 treesize of output 167 [2022-11-03 03:42:08,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,093 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 163 [2022-11-03 03:42:08,186 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 109 treesize of output 101 [2022-11-03 03:42:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,195 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 163 [2022-11-03 03:42:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,226 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 118 treesize of output 54 [2022-11-03 03:42:08,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2022-11-03 03:42:08,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,390 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 0 case distinctions, treesize of input 48 treesize of output 45 [2022-11-03 03:42:08,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:08,473 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:42:08,474 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 76 treesize of output 60 [2022-11-03 03:42:08,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:08,555 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:42:08,556 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 69 treesize of output 68 [2022-11-03 03:42:08,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:42:08,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:42:08,636 INFO L356 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-03 03:42:08,636 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 69 treesize of output 68 [2022-11-03 03:42:09,015 INFO L356 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-03 03:42:09,015 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 72 treesize of output 40 [2022-11-03 03:42:09,042 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:42:09,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:42:57,058 WARN L234 SmtUtils]: Spent 11.02s on a formula simplification. DAG size of input: 122 DAG size of output: 105 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:02,192 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse28 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse35 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse70 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse71 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse45 (<= .cse71 2147483647)) (.cse69 (* .cse71 8)) (.cse66 (* .cse70 8)) (.cse67 (* 8 .cse35)) (.cse68 (* .cse28 8)) (.cse13 (<= .cse70 2147483647)) (.cse65 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse47 (<= .cse65 2147483647)) (.cse12 (not .cse13)) (.cse27 (+ .cse68 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ .cse67 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse20 (+ (- 34359738368) .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse44 (+ .cse69 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not .cse45)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (+ .cse69 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse68 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse36 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse46 (* 8 .cse65))) (and (or (let ((.cse38 (+ 2 (select .cse36 (+ .cse46 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse0 (let ((.cse8 (store .cse36 .cse37 .cse38))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse7 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 (+ .cse1 2 .cse5))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse5))))))) .cse12) (or .cse13 (let ((.cse29 (<= .cse35 2147483647))) (and (or (let ((.cse21 (<= .cse28 2147483647))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= (let ((.cse18 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse18))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse16 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (select .cse18 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse15 .cse4 (+ 2 .cse16 .cse17))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse16 .cse17))))) 5)) (not .cse21)) (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse26 (store (store (store .cse8 .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26))) (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse24 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse25 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse23 .cse4 (+ 2 .cse24 .cse25))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse24 .cse25))))))) .cse21))) .cse29) (or (not .cse29) (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse34 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse34))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse30 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse33 (select .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse30 (select (select (store .cse31 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse32 .cse4 (+ .cse30 2 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse33)))))))))))))) (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse43 (store (store (store (store .cse36 .cse44 .cse38) .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse39 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse41 .cse4 (+ .cse39 2 .cse42))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse42))))))) .cse45))) (not .cse47)) (or .cse47 (let ((.cse59 (+ (select .cse36 (+ (- 34359738368) .cse46 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or (let ((.cse53 (store .cse36 .cse44 .cse59))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= (let ((.cse52 (store (store (store .cse53 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse52))) (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse52 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse48 .cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse51 .cse4 (+ 2 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)) .cse12) (or .cse13 (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse58 (store (store (store .cse53 .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse54 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse58))) (let ((.cse55 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse56 (select .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (select .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse55 .cse4 (+ .cse56 2 .cse57))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse56 .cse57)))))))))) .cse45) (or .cse0 (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse64 (store (store (store (store .cse36 .cse37 .cse59) .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse64))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse62 (select .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse63 (select .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse60 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse61 .cse4 (+ 2 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse62 .cse63))))))))))))))) is different from true [2022-11-03 03:43:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 2 times theorem prover too weak. 0 trivial. 4 not checked. [2022-11-03 03:43:02,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:43:02,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937270487] [2022-11-03 03:43:02,205 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:43:02,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465456376] [2022-11-03 03:43:02,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465456376] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:43:02,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472192649] [2022-11-03 03:43:02,207 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:43:02,208 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:43:02,208 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:43:02,208 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:43:02,208 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:43:02,386 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:43:02,386 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 03:43:02,404 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 03:43:02,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:43:02,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:02,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 25 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 156 [2022-11-03 03:43:02,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:02,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,769 INFO L356 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2022-11-03 03:43:02,769 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 34 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 546 treesize of output 515 [2022-11-03 03:43:02,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,862 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 03:43:02,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,882 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:43:02,882 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 24 treesize of output 27 [2022-11-03 03:43:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:02,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:02,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:03,094 INFO L356 Elim1Store]: treesize reduction 254, result has 10.2 percent of original size [2022-11-03 03:43:03,094 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 148 treesize of output 179 [2022-11-03 03:43:03,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:03,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:03,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:03,158 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:43:03,158 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 91 treesize of output 94 [2022-11-03 03:43:03,286 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:43:04,817 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5751#(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 03:43:04,818 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:43:04,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:43:04,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2022-11-03 03:43:04,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336927934] [2022-11-03 03:43:04,818 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:43:04,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-03 03:43:04,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:43:04,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-03 03:43:04,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=982, Unknown=8, NotChecked=64, Total=1190 [2022-11-03 03:43:04,819 INFO L87 Difference]: Start difference. First operand 68 states and 87 transitions. Second operand has 29 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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 03:43:06,866 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse28 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse35 (mod (+ 2 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse70 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse71 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse45 (<= .cse71 2147483647)) (.cse69 (* .cse71 8)) (.cse66 (* .cse70 8)) (.cse67 (* 8 .cse35)) (.cse68 (* .cse28 8)) (.cse13 (<= .cse70 2147483647)) (.cse65 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse47 (<= .cse65 2147483647)) (.cse12 (not .cse13)) (.cse27 (+ .cse68 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ .cse67 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse20 (+ (- 34359738368) .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse44 (+ .cse69 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse0 (not .cse45)) (.cse4 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (+ .cse69 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse9 (+ .cse68 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse11 (+ .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse36 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse46 (* 8 .cse65))) (and (or (let ((.cse38 (+ 2 (select .cse36 (+ .cse46 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse0 (let ((.cse8 (store .cse36 .cse37 .cse38))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse7 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse7))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse1 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse5 (select .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 .cse4 (+ .cse1 2 .cse5))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse5))))))) .cse12) (or .cse13 (let ((.cse29 (<= .cse35 2147483647))) (and (or (let ((.cse21 (<= .cse28 2147483647))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= (let ((.cse18 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse14 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse18))) (let ((.cse15 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse16 (select .cse15 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (select .cse18 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse14 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse15 .cse4 (+ 2 .cse16 .cse17))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse16 .cse17))))) 5)) (not .cse21)) (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse26 (store (store (store .cse8 .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse26))) (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse24 (select .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse25 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse22 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse23 .cse4 (+ 2 .cse24 .cse25))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse24 .cse25))))))) .cse21))) .cse29) (or (not .cse29) (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse34 (store (store (store .cse8 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse34))) (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse30 (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse33 (select .cse34 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse30 (select (select (store .cse31 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse32 .cse4 (+ .cse30 2 .cse33))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse33)))))))))))))) (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse43 (store (store (store (store .cse36 .cse44 .cse38) .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse39 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse39 (select (select (store .cse40 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse41 .cse4 (+ .cse39 2 .cse42))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse42))))))) .cse45))) (not .cse47)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (or .cse47 (let ((.cse59 (+ (select .cse36 (+ (- 34359738368) .cse46 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or (let ((.cse53 (store .cse36 .cse44 .cse59))) (and (or (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= (let ((.cse52 (store (store (store .cse53 .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse52))) (let ((.cse51 (select .cse50 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse48 (select .cse51 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse49 (select .cse52 |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ .cse48 .cse49 (select (select (store .cse50 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse51 .cse4 (+ 2 .cse48 .cse49))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6)))))) 5)) .cse12) (or .cse13 (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse58 (store (store (store .cse53 .cse27 v_ArrVal_1141) .cse19 v_ArrVal_1143) .cse20 v_ArrVal_1144))) (let ((.cse54 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse58))) (let ((.cse55 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse56 (select .cse58 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse57 (select .cse55 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse54 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse55 .cse4 (+ .cse56 2 .cse57))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse56 .cse57)))))))))) .cse45) (or .cse0 (forall ((v_ArrVal_1141 Int) (v_ArrVal_1143 Int) (v_ArrVal_1144 Int)) (= 5 (let ((.cse64 (store (store (store (store .cse36 .cse37 .cse59) .cse9 v_ArrVal_1141) .cse10 v_ArrVal_1143) .cse11 v_ArrVal_1144))) (let ((.cse60 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse64))) (let ((.cse61 (select .cse60 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse62 (select .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse63 (select .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|))) (+ (select (select (store .cse60 |c_ULTIMATE.start_main_~a~0#1.base| (store .cse61 .cse4 (+ 2 .cse62 .cse63))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse6) .cse62 .cse63))))))))))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 1))))) is different from true [2022-11-03 03:43:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:43:18,498 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-11-03 03:43:18,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-11-03 03:43:18,500 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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 21 [2022-11-03 03:43:18,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:43:18,501 INFO L225 Difference]: With dead ends: 87 [2022-11-03 03:43:18,501 INFO L226 Difference]: Without dead ends: 85 [2022-11-03 03:43:18,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 64.8s TimeCoverageRelationStatistics Valid=304, Invalid=1856, Unknown=10, NotChecked=182, Total=2352 [2022-11-03 03:43:18,502 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 218 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:43:18,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 38 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 123 Invalid, 0 Unknown, 218 Unchecked, 0.7s Time] [2022-11-03 03:43:18,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-03 03:43:18,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 71. [2022-11-03 03:43:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 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 03:43:18,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2022-11-03 03:43:18,547 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 21 [2022-11-03 03:43:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:43:18,547 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2022-11-03 03:43:18,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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 03:43:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2022-11-03 03:43:18,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 03:43:18,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:43:18,548 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-11-03 03:43:18,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-11-03 03:43:18,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-03 03:43:18,749 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:43:18,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:43:18,749 INFO L85 PathProgramCache]: Analyzing trace with hash 999896621, now seen corresponding path program 11 times [2022-11-03 03:43:18,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:43:18,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110471766] [2022-11-03 03:43:18,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:43:18,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:43:18,779 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-03 03:43:18,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1446519486] [2022-11-03 03:43:18,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-03 03:43:18,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:43:18,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:43:18,781 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:43:18,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e24bee4c-3171-49a4-9fa0-577c1106fb57/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-03 03:43:19,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-03 03:43:19,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-03 03:43:19,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-03 03:43:19,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:43:19,824 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 03:43:19,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:19,831 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 03:43:19,835 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 03:43:19,839 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 03:43:19,846 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 03:43:19,900 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 125 treesize of output 117 [2022-11-03 03:43:19,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:19,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:19,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:19,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:19,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:19,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 188 [2022-11-03 03:43:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 46 [2022-11-03 03:43:20,102 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 106 treesize of output 94 [2022-11-03 03:43:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 154 [2022-11-03 03:43:20,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,150 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 51 [2022-11-03 03:43:20,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2022-11-03 03:43:20,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:20,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:20,435 INFO L356 Elim1Store]: treesize reduction 38, result has 19.1 percent of original size [2022-11-03 03:43:20,435 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 70 treesize of output 69 [2022-11-03 03:43:20,599 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 03:43:20,599 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 194 treesize of output 170 [2022-11-03 03:43:20,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,652 INFO L356 Elim1Store]: treesize reduction 143, result has 0.7 percent of original size [2022-11-03 03:43:20,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 155 treesize of output 244 [2022-11-03 03:43:20,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:20,993 INFO L356 Elim1Store]: treesize reduction 156, result has 18.8 percent of original size [2022-11-03 03:43:20,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 202 treesize of output 173 [2022-11-03 03:43:23,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:23,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:43:23,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:43:23,675 INFO L356 Elim1Store]: treesize reduction 44, result has 24.1 percent of original size [2022-11-03 03:43:23,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 105 treesize of output 56 [2022-11-03 03:43:23,722 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:43:23,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:43:39,145 WARN L234 SmtUtils]: Spent 10.18s on a formula simplification that was a NOOP. DAG size: 63 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:43:43,287 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse39 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse38 (* .cse39 8)) (.cse21 (<= .cse39 2147483647)) (.cse37 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse37 2147483647)) (.cse1 (not .cse21)) (.cse12 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (+ c_~N~0 4294967295)) (.cse8 (+ c_~N~0 4294967294)) (.cse7 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse20 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse11 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse22 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse23 (* 8 .cse37))) (and (or (not .cse0) (let ((.cse13 (+ 2 (select .cse22 (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse11 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse23))))) (and (or .cse1 (let ((.cse4 (store .cse11 .cse12 .cse13))) (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse3 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse2 .cse3) (= 16 (select (store .cse4 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse6 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse4 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7)) (< .cse3 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse4 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse9 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse4 (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse5 (+ .cse9 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse7)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse2 .cse10) (< .cse10 .cse8)))))))) (or (let ((.cse15 (store .cse11 .cse20 .cse13))) (let ((.cse16 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse15) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse14 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse2 .cse14) (< .cse14 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 16 (select (store .cse15 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse17 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse16 (+ .cse17 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse15 (+ .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse19 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse15 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse18 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse16 (+ .cse18 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse15 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse7) 16) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse2 .cse19) (< .cse19 .cse8))))))) .cse21)))) (or .cse0 (let ((.cse30 (+ (select .cse11 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse23)) (select .cse22 (+ (- 34359738368) .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse1 (let ((.cse25 (store .cse11 .cse12 .cse30))) (let ((.cse26 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse24 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse2 .cse24) (< .cse24 .cse8) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 16 (select (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse26 (+ .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse25 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= (select (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse28 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse25 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse26 (+ .cse28 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse7) 16) (<= .cse2 .cse29) (< .cse29 .cse8)))))))) (or .cse21 (let ((.cse32 (store .cse11 .cse20 .cse30))) (let ((.cse33 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse31 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse2 .cse31) (= 16 (select (store .cse32 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse34 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse33 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse32 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse7)) (< .cse31 .cse8)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse35 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse2 .cse35) (< .cse35 .cse8) (= 16 (select (store .cse32 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse33 (+ .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse32 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse7)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))))))) (not (< 3 c_~N~0))) is different from true [2022-11-03 03:43:55,167 WARN L855 $PredicateComparison]: unable to prove that (or (let ((.cse68 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse69 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse0 (<= .cse69 2147483647)) (.cse66 (* .cse69 8)) (.cse19 (<= .cse68 2147483647)) (.cse67 (* .cse68 8)) (.cse65 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse40 (<= .cse65 2147483647)) (.cse11 (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse35 (not .cse19)) (.cse12 (+ .cse66 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse16 (+ .cse66 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse18 (not .cse0)) (.cse4 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse5 (+ c_~N~0 4294967295)) (.cse7 (+ c_~N~0 4294967294)) (.cse34 (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse36 (+ .cse66 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse37 (+ .cse66 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse39 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse15 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse38 (* 8 .cse65))) (and (or (let ((.cse13 (select .cse39 (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse14 (select .cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse38)))) (let ((.cse17 (+ 2 .cse13 .cse14))) (and (or .cse0 (let ((.cse1 (let ((.cse10 (store .cse15 .cse16 .cse17))) (store .cse10 .cse11 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse10) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse13 4 .cse14))))) (let ((.cse3 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse6 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse2 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse3 (+ .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse4) 16) (<= .cse5 .cse6) (< .cse6 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse8 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse8) (< .cse8 .cse7) (= 16 (select (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse9 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse9 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse1 (+ .cse9 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse4))))))))) (or .cse18 (let ((.cse26 (store .cse15 .cse37 .cse17))) (let ((.cse27 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|) .cse36) .cse13 4 .cse14))) (and (or .cse19 (let ((.cse21 (store .cse26 .cse11 .cse27))) (let ((.cse23 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse21) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse20 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse20) (= (select (store .cse21 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse22 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse21 (+ .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse23 (+ .cse22 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4) 16) (< .cse20 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse24 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse24) (< .cse24 .cse7) (= 16 (select (store .cse21 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse25 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse21 (+ .cse25 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse23 (+ .cse25 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4))))))))) (or (let ((.cse28 (store .cse26 .cse34 .cse27))) (let ((.cse29 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse28) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse31 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse30 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse29 (+ .cse30 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse28 (+ .cse30 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse4)) (<= .cse5 .cse31) (< .cse31 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse32 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse32) (< .cse32 .cse7) (= (select (store .cse28 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse33 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse29 (+ .cse33 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse28 (+ .cse33 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse4) 16))))))) .cse35)))))))) (not .cse40)) (or .cse40 (let ((.cse55 (select .cse15 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse38))) (.cse56 (select .cse39 (+ (- 34359738368) .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse57 (+ .cse55 .cse56 2))) (and (or (let ((.cse47 (store .cse15 .cse16 .cse57))) (let ((.cse48 (+ .cse55 .cse56 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse47) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) 4))) (and (or .cse19 (let ((.cse42 (store .cse47 .cse11 .cse48))) (let ((.cse44 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse42) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse41 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse41) (< .cse41 .cse7) (= (select (store .cse42 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse43 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse42 (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse44 (+ .cse43 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse4) 16)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse42 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse45 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse42 (+ .cse45 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select .cse44 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse46) (< .cse46 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse35 (let ((.cse50 (store .cse47 .cse34 .cse48))) (let ((.cse51 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse50) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse49 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse49) (= 16 (select (store .cse50 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse52 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse51 (+ .cse52 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse50 (+ .cse52 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse4)) (< .cse49 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse54 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse50 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse53 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse51 (+ .cse53 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse50 (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse4)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse54) (< .cse54 .cse7))))))))))) .cse0) (or .cse18 (let ((.cse59 (let ((.cse64 (store .cse15 .cse37 .cse57))) (store .cse64 .cse34 (+ .cse55 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse64) |c_ULTIMATE.start_main_~b~0#1.base|) .cse36) .cse56 4))))) (let ((.cse61 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse59) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse58 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse5 .cse58) (= 16 (select (store .cse59 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse60 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse59 (+ .cse60 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select .cse61 (+ .cse60 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse4)) (< .cse58 .cse7) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse63 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (store .cse59 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse62 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse61 (+ .cse62 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse59 (+ .cse62 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse4)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse5 .cse63) (< .cse63 .cse7)))))))))))))))) (not (< 3 c_~N~0))) is different from true [2022-11-03 03:44:10,801 WARN L234 SmtUtils]: Spent 10.38s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:44:52,673 WARN L234 SmtUtils]: Spent 31.89s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 03:45:06,218 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse80 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (let ((.cse78 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse79 (mod .cse80 4294967296))) (let ((.cse2 (<= .cse79 2147483647)) (.cse77 (* .cse79 8)) (.cse76 (* .cse78 8)) (.cse34 (<= .cse78 2147483647)) (.cse75 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse75 2147483647)) (.cse1 (not .cse34)) (.cse32 (+ .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse17 (+ .cse77 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse3 (+ c_~N~0 4294967295)) (.cse9 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse11 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse14 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse30 (+ .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse19 (+ c_~N~0 4294967294)) (.cse20 (not .cse2)) (.cse43 (+ .cse76 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse31 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse45 (* 8 .cse75))) (and (or (not .cse0) (let ((.cse33 (+ 2 (select .cse31 (+ .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|))))) (and (or .cse1 (let ((.cse16 (store .cse31 .cse32 .cse33))) (and (or .cse2 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse4 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse4) (= 16 (select (let ((.cse15 (store .cse16 .cse17 v_ArrVal_1212))) (let ((.cse7 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse15))) (let ((.cse5 (let ((.cse13 (select .cse7 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse10 (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (select .cse15 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse8 (store .cse13 .cse14 (+ 2 .cse10 .cse12)))) (store .cse8 .cse9 (+ .cse10 (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse8) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11) 4 .cse12))))))) (store .cse5 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse6 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse7 |c_ULTIMATE.start_main_~a~0#1.base| .cse5) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse6 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse18)) (< .cse4 .cse19) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or .cse20 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse21 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse21) (< .cse21 .cse19) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (let ((.cse29 (store .cse16 .cse30 v_ArrVal_1212))) (let ((.cse24 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse29))) (let ((.cse22 (let ((.cse28 (select .cse24 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse26 (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse27 (select .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse25 (store .cse28 .cse14 (+ 2 .cse26 .cse27)))) (store .cse25 .cse9 (+ (select (select (store .cse24 |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11) .cse26 .cse27 4))))))) (store .cse22 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse23 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse22 (+ .cse23 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse24 |c_ULTIMATE.start_main_~a~0#1.base| .cse22) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18) 16)))))))) (or .cse34 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse44 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 16 (select (let ((.cse42 (store (store .cse31 .cse43 .cse33) .cse17 v_ArrVal_1212))) (let ((.cse37 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse42))) (let ((.cse35 (let ((.cse41 (select .cse37 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse39 (select .cse41 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (select .cse42 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse38 (store .cse41 .cse14 (+ .cse39 .cse40 2)))) (store .cse38 .cse9 (+ .cse39 .cse40 4 (select (select (store .cse37 |c_ULTIMATE.start_main_~a~0#1.base| .cse38) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11)))))))) (store .cse35 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse35 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse37 |c_ULTIMATE.start_main_~a~0#1.base| .cse35) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse36 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (<= .cse3 .cse44) (< .cse44 .cse19)))))))) (or .cse0 (let ((.cse55 (+ (select .cse31 (+ (- 34359738368) .cse45 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse1 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse46 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse3 .cse46) (< .cse46 .cse19) (= (select (let ((.cse54 (store (store .cse31 .cse32 .cse55) .cse30 v_ArrVal_1212))) (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse54))) (let ((.cse47 (let ((.cse53 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse51 (select .cse54 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse52 (select .cse53 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse50 (store .cse53 .cse14 (+ .cse51 2 .cse52)))) (store .cse50 .cse9 (+ (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse50) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11) .cse51 4 .cse52))))))) (store .cse47 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse48 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse47 (+ .cse48 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse47) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse48 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or (let ((.cse64 (store .cse31 .cse43 .cse55))) (and (or .cse2 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse65 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (let ((.cse63 (store .cse64 .cse17 v_ArrVal_1212))) (let ((.cse58 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse63))) (let ((.cse56 (let ((.cse62 (select .cse58 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse60 (select .cse63 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse61 (select .cse62 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse59 (store .cse62 .cse14 (+ .cse60 2 .cse61)))) (store .cse59 .cse9 (+ .cse60 .cse61 4 (select (select (store .cse58 |c_ULTIMATE.start_main_~a~0#1.base| .cse59) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11)))))))) (store .cse56 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse57 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse56 (+ .cse57 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse58 |c_ULTIMATE.start_main_~a~0#1.base| .cse56) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse57 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse65) (< .cse65 .cse19))))) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse66 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse3 .cse66) (= 16 (select (let ((.cse74 (store .cse64 .cse30 v_ArrVal_1212))) (let ((.cse69 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse74))) (let ((.cse67 (let ((.cse73 (select .cse69 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse71 (select .cse74 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse72 (select .cse73 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse70 (store .cse73 .cse14 (+ .cse71 2 .cse72)))) (store .cse70 .cse9 (+ .cse71 (select (select (store .cse69 |c_ULTIMATE.start_main_~a~0#1.base| .cse70) |c_ULTIMATE.start_main_~b~0#1.base|) .cse11) .cse72 4))))))) (store .cse67 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse68 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse67 (+ .cse68 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2 (select (select (store .cse69 |c_ULTIMATE.start_main_~a~0#1.base| .cse67) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse68 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (< .cse66 .cse19)))) .cse20))) .cse34)))))))) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (not (< 3 c_~N~0)) (not (< .cse80 c_~N~0)))) is different from true [2022-11-03 03:45:33,799 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse110 (+ 2 |c_ULTIMATE.start_main_~i~0#1|))) (or (let ((.cse107 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse108 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse109 (mod .cse110 4294967296))) (let ((.cse106 (* 8 .cse109)) (.cse46 (<= .cse109 2147483647)) (.cse24 (<= .cse108 2147483647)) (.cse105 (* .cse108 8)) (.cse104 (* .cse107 8)) (.cse22 (<= .cse107 2147483647)) (.cse103 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse103 2147483647)) (.cse23 (not .cse22)) (.cse59 (+ .cse104 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse58 (+ .cse105 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse35 (not .cse24)) (.cse47 (not .cse46)) (.cse56 (+ .cse106 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ c_~N~0 4294967295)) (.cse21 (+ c_~N~0 4294967294)) (.cse5 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (+ .cse106 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse15 (+ .cse105 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (+ .cse104 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|)) (.cse61 (* 8 .cse103))) (and (or (not .cse0) (let ((.cse60 (select .cse12 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse16 (+ .cse60 4)) (.cse14 (+ 2 .cse60))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse20 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 16 (select (let ((.cse11 (store (store (store .cse12 .cse13 .cse14) .cse15 .cse16) .cse17 v_ArrVal_1212))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11))) (let ((.cse1 (let ((.cse9 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse6 (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (store .cse9 .cse10 (+ .cse6 2 .cse8)))) (store .cse4 .cse5 (+ .cse6 (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse8 4))))))) (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse2 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse2 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse18)) (<= .cse19 .cse20) (< .cse20 .cse21)))) .cse22) (or .cse23 (let ((.cse33 (store .cse12 .cse59 .cse14))) (and (or .cse24 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse32 (store (store .cse33 .cse15 .cse16) .cse17 v_ArrVal_1212))) (let ((.cse26 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32))) (let ((.cse25 (let ((.cse31 (select .cse26 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse29 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse30 (select .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse28 (store .cse31 .cse10 (+ 2 .cse29 .cse30)))) (store .cse28 .cse5 (+ (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| .cse28) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse29 4 .cse30))))))) (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse25 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) .cse18) 16) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse34) (< .cse34 .cse21))))) (or .cse35 (let ((.cse45 (store .cse33 .cse58 .cse16))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse36) (= 16 (select (let ((.cse44 (store .cse45 .cse17 v_ArrVal_1212))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44))) (let ((.cse37 (let ((.cse43 (select .cse39 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse41 (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (select .cse44 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse40 (store .cse43 .cse10 (+ .cse41 .cse42 2)))) (store .cse40 .cse5 (+ .cse41 .cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse38 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse37 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (< .cse36 .cse21) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) .cse46) (or .cse47 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse57 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (let ((.cse55 (store .cse45 .cse56 v_ArrVal_1212))) (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55))) (let ((.cse48 (let ((.cse54 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse52 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse53 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse51 (store .cse54 .cse10 (+ 2 .cse52 .cse53)))) (store .cse51 .cse5 (+ (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4 .cse52 .cse53))))))) (store .cse48 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse50 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse48 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2)))))) .cse18) 16) (<= .cse19 .cse57) (< .cse57 .cse21) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))))))) (or .cse0 (let ((.cse102 (select .cse12 (+ (- 34359738368) .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse72 (+ .cse102 4)) (.cse71 (+ .cse102 2))) (and (or .cse23 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse62 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse62) (< .cse62 .cse21) (= (select (let ((.cse70 (store (store (store .cse12 .cse59 .cse71) .cse58 .cse72) .cse56 v_ArrVal_1212))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse70))) (let ((.cse63 (let ((.cse69 (select .cse65 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse67 (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse68 (select .cse70 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse66 (store .cse69 .cse10 (+ .cse67 2 .cse68)))) (store .cse66 .cse5 (+ .cse67 (select (select (store .cse65 |c_ULTIMATE.start_main_~a~0#1.base| .cse66) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4 .cse68))))))) (store .cse63 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse64 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse63 (+ .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse65 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or (let ((.cse82 (store .cse12 .cse13 .cse71))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse73 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse73) (< .cse73 .cse21) (= (select (let ((.cse81 (store (store .cse82 .cse58 .cse72) .cse56 v_ArrVal_1212))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse81))) (let ((.cse74 (let ((.cse80 (select .cse75 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse78 (select .cse81 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse79 (select .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse77 (store .cse80 .cse10 (+ .cse78 .cse79 2)))) (store .cse77 .cse5 (+ .cse78 .cse79 (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse77) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse74 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse76 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse74) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse74 (+ .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) .cse18) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) .cse35) (or .cse24 (let ((.cse91 (store .cse82 .cse15 .cse72))) (and (or .cse47 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse92 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (let ((.cse90 (store .cse91 .cse56 v_ArrVal_1212))) (let ((.cse85 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse90))) (let ((.cse83 (let ((.cse89 (select .cse85 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse87 (select .cse89 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse88 (select .cse90 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse86 (store .cse89 .cse10 (+ .cse87 2 .cse88)))) (store .cse86 .cse5 (+ .cse87 4 (select (select (store .cse85 |c_ULTIMATE.start_main_~a~0#1.base| .cse86) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse88))))))) (store .cse83 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse84 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse83 (+ .cse84 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2 (select (select (store .cse85 |c_ULTIMATE.start_main_~a~0#1.base| .cse83) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse84 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse92) (< .cse92 .cse21))))) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse93 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse93) (< .cse93 .cse21) (= 16 (select (let ((.cse101 (store .cse91 .cse17 v_ArrVal_1212))) (let ((.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse101))) (let ((.cse94 (let ((.cse100 (select .cse96 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse99 (select .cse100 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse97 (store .cse100 .cse10 (+ .cse98 .cse99 2)))) (store .cse97 .cse5 (+ .cse98 .cse99 (select (select (store .cse96 |c_ULTIMATE.start_main_~a~0#1.base| .cse97) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse94 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse95 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse94 (+ .cse95 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse96 |c_ULTIMATE.start_main_~a~0#1.base| .cse94) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse95 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse18))))) .cse46)))))) .cse22))))))))) (<= c_~N~0 .cse110) (<= c_~N~0 3) (< (+ 3 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0))) is different from true [2022-11-03 03:45:33,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:33,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:33,852 INFO L356 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2022-11-03 03:45:33,853 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 2050 treesize of output 1 [2022-11-03 03:45:33,856 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 10 not checked. [2022-11-03 03:45:33,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110471766] [2022-11-03 03:45:33,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-03 03:45:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446519486] [2022-11-03 03:45:33,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446519486] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:33,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1931189623] [2022-11-03 03:45:33,859 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-03 03:45:33,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:45:33,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:45:33,859 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:45:33,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:45:34,207 INFO L356 Elim1Store]: treesize reduction 111, result has 29.3 percent of original size [2022-11-03 03:45:34,207 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 03:45:34,566 INFO L356 Elim1Store]: treesize reduction 136, result has 24.9 percent of original size [2022-11-03 03:45:34,566 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 03:45:34,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 24 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 95 [2022-11-03 03:45:34,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 112 [2022-11-03 03:45:34,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:34,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:34,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:34,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,091 INFO L356 Elim1Store]: treesize reduction 241, result has 12.4 percent of original size [2022-11-03 03:45:35,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 33 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 39 case distinctions, treesize of input 510 treesize of output 521 [2022-11-03 03:45:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,262 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 03:45:35,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:35,311 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:35,311 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 91 treesize of output 94 [2022-11-03 03:45:35,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 03:45:35,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 03:45:35,368 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 03:45:35,368 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 91 treesize of output 94 [2022-11-03 03:45:35,509 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:45:46,480 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6212#(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 03:45:46,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:45:46,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:45:46,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2022-11-03 03:45:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814457399] [2022-11-03 03:45:46,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-03 03:45:46,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-03 03:45:46,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:46,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-03 03:45:46,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=732, Unknown=10, NotChecked=236, Total=1122 [2022-11-03 03:45:46,482 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand has 28 states, 28 states have (on average 1.5) internal successors, (42), 28 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:45:48,574 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse12 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (not (<= c_~N~0 0)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (let ((.cse110 (+ 2 |c_ULTIMATE.start_main_~i~0#1|))) (or (let ((.cse107 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse108 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse109 (mod .cse110 4294967296))) (let ((.cse106 (* 8 .cse109)) (.cse46 (<= .cse109 2147483647)) (.cse24 (<= .cse108 2147483647)) (.cse105 (* .cse108 8)) (.cse104 (* .cse107 8)) (.cse22 (<= .cse107 2147483647)) (.cse103 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse0 (<= .cse103 2147483647)) (.cse23 (not .cse22)) (.cse59 (+ .cse104 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse58 (+ .cse105 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse35 (not .cse24)) (.cse47 (not .cse46)) (.cse56 (+ .cse106 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ c_~N~0 4294967295)) (.cse21 (+ c_~N~0 4294967294)) (.cse5 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse7 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse10 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse17 (+ .cse106 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse15 (+ .cse105 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse13 (+ .cse104 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse61 (* 8 .cse103))) (and (or (not .cse0) (let ((.cse60 (select .cse12 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse16 (+ .cse60 4)) (.cse14 (+ 2 .cse60))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse20 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 16 (select (let ((.cse11 (store (store (store .cse12 .cse13 .cse14) .cse15 .cse16) .cse17 v_ArrVal_1212))) (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse11))) (let ((.cse1 (let ((.cse9 (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse6 (select .cse9 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse8 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse4 (store .cse9 .cse10 (+ .cse6 2 .cse8)))) (store .cse4 .cse5 (+ .cse6 (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse4) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse8 4))))))) (store .cse1 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse2 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse1 (+ .cse2 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse3 |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse2 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse18)) (<= .cse19 .cse20) (< .cse20 .cse21)))) .cse22) (or .cse23 (let ((.cse33 (store .cse12 .cse59 .cse14))) (and (or .cse24 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= (select (let ((.cse32 (store (store .cse33 .cse15 .cse16) .cse17 v_ArrVal_1212))) (let ((.cse26 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse32))) (let ((.cse25 (let ((.cse31 (select .cse26 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse29 (select .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse30 (select .cse31 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse28 (store .cse31 .cse10 (+ 2 .cse29 .cse30)))) (store .cse28 .cse5 (+ (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| .cse28) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse29 4 .cse30))))))) (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse26 |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse25 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))))))))) .cse18) 16) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse34) (< .cse34 .cse21))))) (or .cse35 (let ((.cse45 (store .cse33 .cse58 .cse16))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse36 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse36) (= 16 (select (let ((.cse44 (store .cse45 .cse17 v_ArrVal_1212))) (let ((.cse39 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse44))) (let ((.cse37 (let ((.cse43 (select .cse39 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse41 (select .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse42 (select .cse44 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse40 (store .cse43 .cse10 (+ .cse41 .cse42 2)))) (store .cse40 .cse5 (+ .cse41 .cse42 (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse40) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse37 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse38 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse37 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse39 |c_ULTIMATE.start_main_~a~0#1.base| .cse37) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (< .cse36 .cse21) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) .cse46) (or .cse47 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse57 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (let ((.cse55 (store .cse45 .cse56 v_ArrVal_1212))) (let ((.cse49 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55))) (let ((.cse48 (let ((.cse54 (select .cse49 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse52 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse53 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse51 (store .cse54 .cse10 (+ 2 .cse52 .cse53)))) (store .cse51 .cse5 (+ (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4 .cse52 .cse53))))))) (store .cse48 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse50 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select (select (store .cse49 |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse50 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse48 (+ .cse50 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2)))))) .cse18) 16) (<= .cse19 .cse57) (< .cse57 .cse21) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))))))) (or .cse0 (let ((.cse102 (select .cse12 (+ (- 34359738368) .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse72 (+ .cse102 4)) (.cse71 (+ .cse102 2))) (and (or .cse23 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse62 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse62) (< .cse62 .cse21) (= (select (let ((.cse70 (store (store (store .cse12 .cse59 .cse71) .cse58 .cse72) .cse56 v_ArrVal_1212))) (let ((.cse65 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse70))) (let ((.cse63 (let ((.cse69 (select .cse65 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse67 (select .cse69 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse68 (select .cse70 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse66 (store .cse69 .cse10 (+ .cse67 2 .cse68)))) (store .cse66 .cse5 (+ .cse67 (select (select (store .cse65 |c_ULTIMATE.start_main_~a~0#1.base| .cse66) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4 .cse68))))))) (store .cse63 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse64 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse63 (+ .cse64 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse65 |c_ULTIMATE.start_main_~a~0#1.base| .cse63) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or (let ((.cse82 (store .cse12 .cse13 .cse71))) (and (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse73 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse19 .cse73) (< .cse73 .cse21) (= (select (let ((.cse81 (store (store .cse82 .cse58 .cse72) .cse56 v_ArrVal_1212))) (let ((.cse75 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse81))) (let ((.cse74 (let ((.cse80 (select .cse75 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse78 (select .cse81 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse79 (select .cse80 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse77 (store .cse80 .cse10 (+ .cse78 .cse79 2)))) (store .cse77 .cse5 (+ .cse78 .cse79 (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse77) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse74 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse76 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select (select (store .cse75 |c_ULTIMATE.start_main_~a~0#1.base| .cse74) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse74 (+ .cse76 |c_ULTIMATE.start_main_~a~0#1.offset|)))))))) .cse18) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) .cse35) (or .cse24 (let ((.cse91 (store .cse82 .cse15 .cse72))) (and (or .cse47 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse92 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (let ((.cse90 (store .cse91 .cse56 v_ArrVal_1212))) (let ((.cse85 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse90))) (let ((.cse83 (let ((.cse89 (select .cse85 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse87 (select .cse89 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse88 (select .cse90 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse86 (store .cse89 .cse10 (+ .cse87 2 .cse88)))) (store .cse86 .cse5 (+ .cse87 4 (select (select (store .cse85 |c_ULTIMATE.start_main_~a~0#1.base| .cse86) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) .cse88))))))) (store .cse83 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse84 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse83 (+ .cse84 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2 (select (select (store .cse85 |c_ULTIMATE.start_main_~a~0#1.base| .cse83) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse84 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse18)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse92) (< .cse92 .cse21))))) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse93 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse19 .cse93) (< .cse93 .cse21) (= 16 (select (let ((.cse101 (store .cse91 .cse17 v_ArrVal_1212))) (let ((.cse96 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse101))) (let ((.cse94 (let ((.cse100 (select .cse96 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse98 (select .cse101 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse99 (select .cse100 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse97 (store .cse100 .cse10 (+ .cse98 .cse99 2)))) (store .cse97 .cse5 (+ .cse98 .cse99 (select (select (store .cse96 |c_ULTIMATE.start_main_~a~0#1.base| .cse97) |c_ULTIMATE.start_main_~b~0#1.base|) .cse7) 4))))))) (store .cse94 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse95 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse94 (+ .cse95 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse96 |c_ULTIMATE.start_main_~a~0#1.base| .cse94) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse95 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse18))))) .cse46)))))) .cse22))))))))) (<= c_~N~0 .cse110) (<= c_~N~0 3) (< (+ 3 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0))) (= (select .cse12 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (<= c_~N~0 2147483647) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from true [2022-11-03 03:45:50,607 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse79 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse76 (* 8 .cse79)) (.cse32 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse0 (select .cse32 (+ (* (mod (+ 4294967294 |c_ULTIMATE.start_main_~i~0#1|) 4294967296) 8) |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse46 (select .cse32 (+ .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (and (= .cse0 1) (let ((.cse82 (+ |c_ULTIMATE.start_main_~i~0#1| 1))) (or (let ((.cse80 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse81 (mod .cse82 4294967296))) (let ((.cse3 (<= .cse81 2147483647)) (.cse78 (* .cse81 8)) (.cse77 (* .cse80 8)) (.cse35 (<= .cse80 2147483647))) (let ((.cse1 (<= .cse79 2147483647)) (.cse2 (not .cse35)) (.cse33 (+ .cse77 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ .cse78 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse4 (+ c_~N~0 4294967295)) (.cse10 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse12 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse15 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse31 (+ .cse78 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse19 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse20 (+ c_~N~0 4294967294)) (.cse21 (not .cse3)) (.cse44 (+ .cse77 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))) (and (or (not .cse1) (let ((.cse34 (+ 2 .cse46))) (and (or .cse2 (let ((.cse17 (store .cse32 .cse33 .cse34))) (and (or .cse3 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse5) (= 16 (select (let ((.cse16 (store .cse17 .cse18 v_ArrVal_1212))) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse16))) (let ((.cse6 (let ((.cse14 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse11 (select .cse14 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse13 (select .cse16 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse9 (store .cse14 .cse15 (+ 2 .cse11 .cse13)))) (store .cse9 .cse10 (+ .cse11 (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| .cse9) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) 4 .cse13))))))) (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse7 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse6 (+ .cse7 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select (select (store .cse8 |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse7 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2)))))) .cse19)) (< .cse5 .cse20) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or .cse21 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse22 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse22) (< .cse22 .cse20) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= (select (let ((.cse30 (store .cse17 .cse31 v_ArrVal_1212))) (let ((.cse25 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse30))) (let ((.cse23 (let ((.cse29 (select .cse25 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse27 (select .cse30 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse28 (select .cse29 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse26 (store .cse29 .cse15 (+ 2 .cse27 .cse28)))) (store .cse26 .cse10 (+ (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse26) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse27 .cse28 4))))))) (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse23 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse25 |c_ULTIMATE.start_main_~a~0#1.base| .cse23) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse19) 16)))))))) (or .cse35 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse45 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= 16 (select (let ((.cse43 (store (store .cse32 .cse44 .cse34) .cse18 v_ArrVal_1212))) (let ((.cse38 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse43))) (let ((.cse36 (let ((.cse42 (select .cse38 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse40 (select .cse42 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse41 (select .cse43 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse39 (store .cse42 .cse15 (+ .cse40 .cse41 2)))) (store .cse39 .cse10 (+ .cse40 .cse41 4 (select (select (store .cse38 |c_ULTIMATE.start_main_~a~0#1.base| .cse39) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12)))))))) (store .cse36 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse37 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse36 (+ .cse37 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse38 |c_ULTIMATE.start_main_~a~0#1.base| .cse36) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse37 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse19)) (<= .cse4 .cse45) (< .cse45 .cse20)))))))) (or .cse1 (let ((.cse56 (+ (select .cse32 (+ (- 34359738368) .cse76 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse2 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse47) (< .cse47 .cse20) (= (select (let ((.cse55 (store (store .cse32 .cse33 .cse56) .cse31 v_ArrVal_1212))) (let ((.cse50 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse55))) (let ((.cse48 (let ((.cse54 (select .cse50 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse52 (select .cse55 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse53 (select .cse54 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse51 (store .cse54 .cse15 (+ .cse52 2 .cse53)))) (store .cse51 .cse10 (+ (select (select (store .cse50 |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse52 4 .cse53))))))) (store .cse48 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse49 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse48 (+ .cse49 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select (select (store .cse50 |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse49 |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse19) 16) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))) (or (let ((.cse65 (store .cse32 .cse44 .cse56))) (and (or .cse3 (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse66 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (let ((.cse64 (store .cse65 .cse18 v_ArrVal_1212))) (let ((.cse59 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse64))) (let ((.cse57 (let ((.cse63 (select .cse59 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse61 (select .cse64 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse62 (select .cse63 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse60 (store .cse63 .cse15 (+ .cse61 2 .cse62)))) (store .cse60 .cse10 (+ .cse61 .cse62 4 (select (select (store .cse59 |c_ULTIMATE.start_main_~a~0#1.base| .cse60) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12)))))))) (store .cse57 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse58 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse57 (+ .cse58 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select (select (store .cse59 |c_ULTIMATE.start_main_~a~0#1.base| .cse57) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse58 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse19)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse66) (< .cse66 .cse20))))) (or (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (v_ArrVal_1212 Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse67 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse67) (= 16 (select (let ((.cse75 (store .cse65 .cse31 v_ArrVal_1212))) (let ((.cse70 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| .cse75))) (let ((.cse68 (let ((.cse74 (select .cse70 |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse72 (select .cse75 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse73 (select .cse74 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse71 (store .cse74 .cse15 (+ .cse72 2 .cse73)))) (store .cse71 .cse10 (+ .cse72 (select (select (store .cse70 |c_ULTIMATE.start_main_~a~0#1.base| .cse71) |c_ULTIMATE.start_main_~b~0#1.base|) .cse12) .cse73 4))))))) (store .cse68 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse69 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse68 (+ .cse69 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2 (select (select (store .cse70 |c_ULTIMATE.start_main_~a~0#1.base| .cse68) |c_ULTIMATE.start_main_~b~0#1.base|) (+ .cse69 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) .cse19)) (< .cse67 .cse20)))) .cse21))) .cse35)))))))) (< (+ 2 |c_ULTIMATE.start_main_~i~0#1|) c_~N~0) (not (< 3 c_~N~0)) (not (< .cse82 c_~N~0)))) (= (+ .cse0 2) .cse46) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (<= c_~N~0 2147483647) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (< |c_ULTIMATE.start_main_~i~0#1| (+ c_~N~0 1)))))) is different from true [2022-11-03 03:45:52,760 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (let ((.cse17 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse71 (< 3 c_~N~0)) (.cse1 (select .cse0 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (and (<= c_~N~0 4) (= (select .cse0 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) (+ 2 .cse1)) (= .cse1 (+ 2 (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|))) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (or (let ((.cse69 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296)) (.cse70 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (<= .cse70 2147483647)) (.cse67 (* .cse70 8)) (.cse21 (<= .cse69 2147483647)) (.cse68 (* .cse69 8)) (.cse66 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse41 (<= .cse66 2147483647)) (.cse13 (+ .cse68 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse37 (not .cse21)) (.cse14 (+ .cse67 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse18 (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse20 (not .cse2)) (.cse6 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse7 (+ c_~N~0 4294967295)) (.cse9 (+ c_~N~0 4294967294)) (.cse36 (+ .cse68 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse38 (+ .cse67 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse39 (+ .cse67 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse40 (* 8 .cse66))) (and (or (let ((.cse15 (select .cse0 (+ .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|))) (.cse16 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse40)))) (let ((.cse19 (+ 2 .cse15 .cse16))) (and (or .cse2 (let ((.cse3 (let ((.cse12 (store .cse17 .cse18 .cse19))) (store .cse12 .cse13 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse12) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14) .cse15 4 .cse16))))) (let ((.cse5 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse8 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse3 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse4 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse3 (+ .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse5 (+ .cse4 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse6) 16) (<= .cse7 .cse8) (< .cse8 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse10 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse10) (< .cse10 .cse9) (= 16 (select (store .cse3 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse11 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse5 (+ .cse11 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse3 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse6))))))))) (or .cse20 (let ((.cse28 (store .cse17 .cse39 .cse19))) (let ((.cse29 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse28) |c_ULTIMATE.start_main_~b~0#1.base|) .cse38) .cse15 4 .cse16))) (and (or .cse21 (let ((.cse23 (store .cse28 .cse13 .cse29))) (let ((.cse25 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse23) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse22 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse7 .cse22) (= (select (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse24 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse23 (+ .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|)) (select .cse25 (+ .cse24 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse6) 16) (< .cse22 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse26 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse26) (< .cse26 .cse9) (= 16 (select (store .cse23 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse23 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse25 (+ .cse27 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse6))))))))) (or (let ((.cse30 (store .cse28 .cse36 .cse29))) (let ((.cse31 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse30) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse33 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse32 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse32 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse30 (+ .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse6)) (<= .cse7 .cse33) (< .cse33 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse34 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse34) (< .cse34 .cse9) (= (select (store .cse30 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse35 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse31 (+ .cse35 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse30 (+ .cse35 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse6) 16))))))) .cse37)))))))) (not .cse41)) (or .cse41 (let ((.cse56 (select .cse17 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse40))) (.cse57 (select .cse0 (+ (- 34359738368) .cse40 |c_ULTIMATE.start_main_~b~0#1.offset|)))) (let ((.cse58 (+ .cse56 .cse57 2))) (and (or (let ((.cse48 (store .cse17 .cse18 .cse58))) (let ((.cse49 (+ .cse56 .cse57 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse48) |c_ULTIMATE.start_main_~b~0#1.base|) .cse14) 4))) (and (or .cse21 (let ((.cse43 (store .cse48 .cse13 .cse49))) (let ((.cse45 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse43) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse42 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse42) (< .cse42 .cse9) (= (select (store .cse43 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse44 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse43 (+ .cse44 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse45 (+ .cse44 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse6) 16)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse47 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse43 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse46 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse43 (+ .cse46 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select .cse45 (+ .cse46 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse6)) (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse7 .cse47) (< .cse47 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))))))) (or .cse37 (let ((.cse51 (store .cse48 .cse36 .cse49))) (let ((.cse52 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse51) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse50 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse7 .cse50) (= 16 (select (store .cse51 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse53 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse52 (+ .cse53 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse51 (+ .cse53 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse6)) (< .cse50 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse55 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse51 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse54 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse52 (+ .cse54 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse51 (+ .cse54 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse6)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse55) (< .cse55 .cse9))))))))))) .cse2) (or .cse20 (let ((.cse60 (let ((.cse65 (store .cse17 .cse39 .cse58))) (store .cse65 .cse36 (+ .cse56 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse65) |c_ULTIMATE.start_main_~b~0#1.base|) .cse38) .cse57 4))))) (let ((.cse62 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse60) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse59 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse7 .cse59) (= 16 (select (store .cse60 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse61 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse60 (+ .cse61 |c_ULTIMATE.start_main_~a~0#1.offset|)) 2 (select .cse62 (+ .cse61 |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse6)) (< .cse59 .cse9) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse64 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= 16 (select (store .cse60 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse63 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse62 (+ .cse63 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse60 (+ .cse63 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) 2))) .cse6)) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse7 .cse64) (< .cse64 .cse9)))))))))))))))) (not .cse71)) (= (select .cse17 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) .cse71 (= 3 .cse1) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from true [2022-11-03 03:45:54,892 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse40 (< 3 c_~N~0)) (.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|))) (and (<= c_~N~0 4) (= (select .cse0 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 4) (= (select .cse1 (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|)) 5) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (= (select .cse1 |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or (let ((.cse39 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse38 (* .cse39 8)) (.cse22 (<= .cse39 2147483647)) (.cse37 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (let ((.cse2 (<= .cse37 2147483647)) (.cse3 (not .cse22)) (.cse13 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse4 (+ c_~N~0 4294967295)) (.cse10 (+ c_~N~0 4294967294)) (.cse9 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 24)) (.cse21 (+ .cse38 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse23 (* 8 .cse37))) (and (or (not .cse2) (let ((.cse14 (+ 2 (select .cse1 (+ .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse23))))) (and (or .cse3 (let ((.cse6 (store .cse0 .cse13 .cse14))) (let ((.cse7 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse6) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse5 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse5) (= 16 (select (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse8 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse7 (+ .cse8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse6 (+ .cse8 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse9)) (< .cse5 .cse10) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse12 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (= 16 (select (store .cse6 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse11 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse6 (+ .cse11 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse7 (+ .cse11 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) .cse9)) (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse12) (< .cse12 .cse10)))))))) (or (let ((.cse16 (store .cse0 .cse21 .cse14))) (let ((.cse17 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse16) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse15 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse15) (< .cse15 .cse10) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 16 (select (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse18 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse17 (+ .cse18 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse16 (+ .cse18 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse20 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (= (select (store .cse16 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse19 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse17 (+ .cse19 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse16 (+ .cse19 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse9) 16) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse20) (< .cse20 .cse10))))))) .cse22)))) (or .cse2 (let ((.cse30 (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse23)) (select .cse1 (+ (- 34359738368) .cse23 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2))) (and (or .cse3 (let ((.cse25 (store .cse0 .cse13 .cse30))) (let ((.cse26 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse25) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse24 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse24) (< .cse24 .cse10) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0) (= 16 (select (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse27 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse26 (+ .cse27 |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse25 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse9))))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse29 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (= (select (store .cse25 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse28 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse25 (+ .cse28 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (select .cse26 (+ .cse28 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|))))) .cse9) 16) (<= .cse4 .cse29) (< .cse29 .cse10)))))))) (or .cse22 (let ((.cse32 (store .cse0 .cse21 .cse30))) (let ((.cse33 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32) |c_ULTIMATE.start_main_~b~0#1.base|))) (and (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse31 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (<= 4294967296 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= |aux_mod_ULTIMATE.start_main_~i~0#1_60| 2147483647) (<= .cse4 .cse31) (= 16 (select (store .cse32 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse34 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ (select .cse33 (+ .cse34 (- 34359738368) |c_ULTIMATE.start_main_~b~0#1.offset|)) 2 (select .cse32 (+ .cse34 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)))))) .cse9)) (< .cse31 .cse10)))) (forall ((|aux_mod_ULTIMATE.start_main_~i~0#1_60| Int) (|aux_div_ULTIMATE.start_main_~i~0#1_60| Int)) (let ((.cse35 (+ (* |aux_div_ULTIMATE.start_main_~i~0#1_60| 4294967296) |aux_mod_ULTIMATE.start_main_~i~0#1_60|))) (or (< 2147483647 |aux_mod_ULTIMATE.start_main_~i~0#1_60|) (<= .cse4 .cse35) (< .cse35 .cse10) (= 16 (select (store .cse32 (+ (* 8 (mod (+ |aux_mod_ULTIMATE.start_main_~i~0#1_60| 1) 4294967296)) |c_ULTIMATE.start_main_~a~0#1.offset|) (let ((.cse36 (* (mod |aux_mod_ULTIMATE.start_main_~i~0#1_60| 4294967296) 8))) (+ 2 (select .cse33 (+ .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse32 (+ .cse36 |c_ULTIMATE.start_main_~a~0#1.offset|))))) .cse9)) (< |aux_mod_ULTIMATE.start_main_~i~0#1_60| 0))))))))))))))) (not .cse40)) .cse40 (= 3 (select .cse1 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))))) is different from true