./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0 --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 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 --- 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-e04fb08 [2022-11-16 20:05:11,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:05:11,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:05:11,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:05:11,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:05:11,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:05:11,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:05:11,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:05:11,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:05:11,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:05:11,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:05:11,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:05:11,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:05:11,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:05:11,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:05:11,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:05:11,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:05:11,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:05:11,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:05:11,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:05:11,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:05:11,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:05:11,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:05:11,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:05:11,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:05:11,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:05:11,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:05:11,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:05:11,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:05:11,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:05:11,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:05:11,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:05:11,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:05:11,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:05:11,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:05:11,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:05:11,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:05:11,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:05:11,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:05:11,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:05:11,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:05:11,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 20:05:12,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:05:12,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:05:12,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:05:12,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:05:12,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:05:12,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:05:12,035 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:05:12,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:05:12,036 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:05:12,036 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:05:12,037 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:05:12,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:05:12,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:05:12,038 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:05:12,038 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:05:12,038 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:05:12,038 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:05:12,039 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:05:12,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:05:12,040 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 20:05:12,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:05:12,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 20:05:12,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:05:12,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:05:12,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:05:12,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:05:12,041 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 20:05:12,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:05:12,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:05:12,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:05:12,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:05:12,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:05:12,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:05:12,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:05:12,043 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:05:12,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:05:12,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:05:12,044 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:05:12,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:05:12,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:05:12,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:05:12,045 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_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 [2022-11-16 20:05:12,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:05:12,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:05:12,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:05:12,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:05:12,350 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:05:12,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-16 20:05:12,430 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/data/838506838/2da0806e9e8442a6b0a54a5585291c86/FLAGff5f7a7a7 [2022-11-16 20:05:12,952 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:05:12,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2022-11-16 20:05:12,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/data/838506838/2da0806e9e8442a6b0a54a5585291c86/FLAGff5f7a7a7 [2022-11-16 20:05:13,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/data/838506838/2da0806e9e8442a6b0a54a5585291c86 [2022-11-16 20:05:13,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:05:13,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:05:13,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:05:13,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:05:13,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:05:13,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:05:13" (1/1) ... [2022-11-16 20:05:13,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cab23c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:13, skipping insertion in model container [2022-11-16 20:05:13,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:05:13" (1/1) ... [2022-11-16 20:05:13,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:05:13,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:05:13,796 WARN L229 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_a09ff941-8ef8-4650-853c-36d307f19d4e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-16 20:05:13,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:05:13,937 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:05:13,988 WARN L229 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_a09ff941-8ef8-4650-853c-36d307f19d4e/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2022-11-16 20:05:14,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:05:14,156 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:05:14,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14 WrapperNode [2022-11-16 20:05:14,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:05:14,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:05:14,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:05:14,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:05:14,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,265 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-11-16 20:05:14,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:05:14,266 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:05:14,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:05:14,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:05:14,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:05:14,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:05:14,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:05:14,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:05:14,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (1/1) ... [2022-11-16 20:05:14,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:05:14,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:05:14,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:05:14,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:05:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:05:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 20:05:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 20:05:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:05:14,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 20:05:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 20:05:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:05:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:05:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:05:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:05:14,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:05:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:05:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:05:14,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:05:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:05:14,800 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:05:14,817 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:05:17,082 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:05:17,512 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:05:17,513 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-11-16 20:05:17,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:05:17 BoogieIcfgContainer [2022-11-16 20:05:17,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:05:17,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:05:17,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:05:17,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:05:17,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:05:13" (1/3) ... [2022-11-16 20:05:17,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65899db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:05:17, skipping insertion in model container [2022-11-16 20:05:17,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:05:14" (2/3) ... [2022-11-16 20:05:17,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65899db3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:05:17, skipping insertion in model container [2022-11-16 20:05:17,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:05:17" (3/3) ... [2022-11-16 20:05:17,526 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-1.i [2022-11-16 20:05:17,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:05:17,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 20:05:17,631 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:05:17,644 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;@58b00151, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:05:17,645 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 20:05:17,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 20:05:17,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 20:05:17,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:05:17,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:05:17,660 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:05:17,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:05:17,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-11-16 20:05:17,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:05:17,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801428936] [2022-11-16 20:05:17,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:05:17,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:05:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:05:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:05:17,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:05:17,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801428936] [2022-11-16 20:05:17,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801428936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:05:17,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:05:17,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:05:17,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129949530] [2022-11-16 20:05:17,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:05:17,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:05:17,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:05:17,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:05:17,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:05:17,951 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:20,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:05:22,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:05:24,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:05:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:05:24,560 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-11-16 20:05:24,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:05:24,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-16 20:05:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:05:24,580 INFO L225 Difference]: With dead ends: 347 [2022-11-16 20:05:24,580 INFO L226 Difference]: Without dead ends: 220 [2022-11-16 20:05:24,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:05:24,586 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-16 20:05:24,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-16 20:05:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-16 20:05:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-11-16 20:05:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 20:05:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-11-16 20:05:24,637 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-11-16 20:05:24,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:05:24,638 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-11-16 20:05:24,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-11-16 20:05:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-16 20:05:24,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:05:24,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:05:24,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:05:24,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:05:24,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:05:24,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-11-16 20:05:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:05:24,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351128946] [2022-11-16 20:05:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:05:24,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:05:24,974 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:05:24,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057427753] [2022-11-16 20:05:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:05:24,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:05:24,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:05:24,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:05:25,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:05:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:05:26,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:05:26,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:05:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:05:26,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:05:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:05:26,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:05:26,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351128946] [2022-11-16 20:05:26,684 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:05:26,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057427753] [2022-11-16 20:05:26,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057427753] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:05:26,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [422110664] [2022-11-16 20:05:26,708 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-16 20:05:26,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:05:26,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:05:26,721 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:05:26,726 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:05:26,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:26,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:26,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:26,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:05:26,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:26,944 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:05:26,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:05:26,996 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:05:26,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 20:05:27,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:05:27,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:27,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:27,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 20:05:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-16 20:05:27,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:27,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:05:27,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,676 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:05:27,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:05:27,721 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-16 20:05:27,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 30 [2022-11-16 20:05:27,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:27,801 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:05:27,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 20:05:27,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:27,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:28,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 20:05:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:28,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-16 20:05:28,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:28,462 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:05:36,703 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:44,120 WARN L233 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:05:44,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [422110664] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:05:44,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 20:05:44,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-16 20:05:44,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521101393] [2022-11-16 20:05:44,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:05:44,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 20:05:44,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:05:44,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 20:05:44,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-16 20:05:44,129 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:05:47,240 INFO L93 Difference]: Finished difference Result 262 states and 336 transitions. [2022-11-16 20:05:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 20:05:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-11-16 20:05:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:05:47,243 INFO L225 Difference]: With dead ends: 262 [2022-11-16 20:05:47,243 INFO L226 Difference]: Without dead ends: 137 [2022-11-16 20:05:47,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-16 20:05:47,245 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 7 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:05:47,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 468 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 69 Unchecked, 3.1s Time] [2022-11-16 20:05:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-11-16 20:05:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-11-16 20:05:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 20:05:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-11-16 20:05:47,265 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-11-16 20:05:47,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:05:47,266 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-11-16 20:05:47,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:05:47,266 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-11-16 20:05:47,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-16 20:05:47,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:05:47,268 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:05:47,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:05:47,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:05:47,480 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:05:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:05:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-11-16 20:05:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:05:47,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485350866] [2022-11-16 20:05:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:05:47,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:05:47,684 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:05:47,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683157504] [2022-11-16 20:05:47,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:05:47,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:05:47,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:05:47,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:05:47,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:05:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:05:48,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:05:48,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:05:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:05:48,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:05:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 20:05:49,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:05:49,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485350866] [2022-11-16 20:05:49,056 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:05:49,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683157504] [2022-11-16 20:05:49,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683157504] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:05:49,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1330260652] [2022-11-16 20:05:49,073 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-16 20:05:49,073 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:05:49,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:05:49,074 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:05:49,074 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:05:49,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:49,236 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:05:49,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 20:05:49,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:49,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:05:49,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:05:49,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-16 20:05:49,598 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:49,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 20:05:49,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-16 20:05:49,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:49,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:05:49,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:49,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:49,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:05:49,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:05:50,030 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:05:50,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:05:50,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-16 20:05:50,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:05:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:50,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:50,467 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:05:50,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 20:05:50,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:05:50,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:05:50,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-16 20:05:50,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:05:50,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:50,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:05:50,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 20:05:50,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:50,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-16 20:05:51,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:05:51,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:51,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:51,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:05:51,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:05:51,296 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:05:51,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:05:51,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-11-16 20:05:51,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:05:51,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:05:51,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:05:51,766 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-11-16 20:05:51,876 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-16 20:05:57,938 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:05,733 WARN L233 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:15,449 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:27,398 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:40,014 WARN L233 SmtUtils]: Spent 6.44s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-16 20:06:40,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1330260652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:06:40,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-16 20:06:40,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-16 20:06:40,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506990256] [2022-11-16 20:06:40,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:06:40,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 20:06:40,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:06:40,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 20:06:40,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-16 20:06:40,606 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:06:44,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:06:44,309 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-11-16 20:06:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 20:06:44,309 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 65 [2022-11-16 20:06:44,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:06:44,311 INFO L225 Difference]: With dead ends: 267 [2022-11-16 20:06:44,311 INFO L226 Difference]: Without dead ends: 142 [2022-11-16 20:06:44,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 48.7s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-16 20:06:44,313 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 8 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 220 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:06:44,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 647 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 220 Unchecked, 3.7s Time] [2022-11-16 20:06:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-16 20:06:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-16 20:06:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-16 20:06:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-11-16 20:06:44,371 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-11-16 20:06:44,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:06:44,372 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-11-16 20:06:44,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:06:44,372 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-11-16 20:06:44,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-16 20:06:44,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:06:44,377 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:06:44,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 20:06:44,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:44,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 20:06:44,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:06:44,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-11-16 20:06:44,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:06:44,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638961387] [2022-11-16 20:06:44,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:44,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:06:44,759 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-16 20:06:44,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015353379] [2022-11-16 20:06:44,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:06:44,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:06:44,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:06:44,763 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:06:44,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a09ff941-8ef8-4650-853c-36d307f19d4e/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 20:06:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:06:46,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 20:06:46,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:06:46,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:06:46,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:06:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 20:06:46,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:06:46,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638961387] [2022-11-16 20:06:46,228 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-16 20:06:46,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015353379] [2022-11-16 20:06:46,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015353379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:06:46,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689037266] [2022-11-16 20:06:46,232 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-11-16 20:06:46,232 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:06:46,233 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:06:46,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:06:46,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:06:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 20:06:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,330 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-16 20:06:46,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-16 20:06:46,376 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-16 20:06:46,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2022-11-16 20:06:46,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:06:46,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-16 20:06:46,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-16 20:06:46,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:06:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-16 20:06:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-16 20:06:46,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-16 20:06:46,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:06:46,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:46,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:06:46,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:06:47,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-16 20:06:47,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:06:47,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-16 20:06:47,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-16 20:06:47,197 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-16 20:06:47,197 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 28 treesize of output 66 [2022-11-16 20:06:47,279 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-16 20:06:47,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-11-16 20:06:47,463 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 20:06:47,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:06:47,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:06:47,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 20:06:47,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-16 20:06:47,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-16 20:06:47,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-16 20:06:47,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:06:47,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-16 20:06:47,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 20:06:47,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 20:06:47,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2022-11-16 20:06:47,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:06:47,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-16 20:06:47,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-16 20:06:47,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 46 treesize of output 16 [2022-11-16 20:06:48,837 INFO L217 Elim1Store]: Index analysis took 453 ms [2022-11-16 20:06:57,283 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 60 DAG size of output: 18 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:06:57,283 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-11-16 20:06:57,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-11-16 20:06:58,252 INFO L217 Elim1Store]: Index analysis took 472 ms [2022-11-16 20:07:02,464 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-11-16 20:07:02,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-11-16 20:07:14,592 WARN L233 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:07:14,592 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-16 20:07:14,593 INFO L350 Elim1Store]: Elim1 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-16 20:07:36,625 WARN L233 SmtUtils]: Spent 21.88s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:07:36,626 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-16 20:07:36,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-16 20:07:37,379 INFO L217 Elim1Store]: Index analysis took 542 ms [2022-11-16 20:07:54,279 WARN L233 SmtUtils]: Spent 16.37s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:07:54,280 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-16 20:07:54,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-16 20:07:55,737 INFO L217 Elim1Store]: Index analysis took 323 ms [2022-11-16 20:07:56,156 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-16 20:07:56,156 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-16 20:07:56,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-16 20:07:56,542 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-16 20:07:57,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 20:07:57,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-16 20:08:03,262 INFO L217 Elim1Store]: Index analysis took 491 ms