./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS --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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- 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-8393723 [2022-11-19 07:18:39,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:18:39,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:18:39,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:18:39,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:18:39,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:18:39,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:18:39,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:18:39,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:18:39,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:18:39,937 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:18:39,938 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:18:39,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:18:39,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:18:39,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:18:39,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:18:39,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:18:39,944 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:18:39,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:18:39,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:18:39,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:18:39,951 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:18:39,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:18:39,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:18:39,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:18:39,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:18:39,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:18:39,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:18:39,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:18:39,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:18:39,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:18:39,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:18:39,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:18:39,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:18:39,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:18:39,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:18:39,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:18:39,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:18:39,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:18:39,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:18:39,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:18:39,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:18:40,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:18:40,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:18:40,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:18:40,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:18:40,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:18:40,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:18:40,016 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:18:40,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:18:40,016 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:18:40,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:18:40,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:18:40,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:18:40,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:18:40,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:18:40,018 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:18:40,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:18:40,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:18:40,019 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:18:40,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:18:40,020 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:18:40,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:18:40,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:18:40,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:18:40,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:18:40,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:18:40,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:18:40,022 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:18:40,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:18:40,022 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:18:40,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:18:40,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:18:40,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:18:40,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:40,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:18:40,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:18:40,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:18:40,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:18:40,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:18:40,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:18:40,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:18:40,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:18:40,030 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_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2022-11-19 07:18:40,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:18:40,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:18:40,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:18:40,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:18:40,398 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:18:40,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2022-11-19 07:18:40,483 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/data/bb476b4b1/417f65df0c7c4b3dac4cb52682ea991f/FLAG2dbae5fb0 [2022-11-19 07:18:41,172 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:18:41,174 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2022-11-19 07:18:41,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/data/bb476b4b1/417f65df0c7c4b3dac4cb52682ea991f/FLAG2dbae5fb0 [2022-11-19 07:18:41,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/data/bb476b4b1/417f65df0c7c4b3dac4cb52682ea991f [2022-11-19 07:18:41,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:18:41,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:18:41,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:41,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:18:41,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:18:41,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:41" (1/1) ... [2022-11-19 07:18:41,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8bd0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:41, skipping insertion in model container [2022-11-19 07:18:41,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:18:41" (1/1) ... [2022-11-19 07:18:41,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:18:41,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:18:42,010 WARN L234 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_5c171417-729d-449b-a224-413f4e23b395/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[33021,33034] [2022-11-19 07:18:42,261 WARN L234 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_5c171417-729d-449b-a224-413f4e23b395/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[49681,49694] [2022-11-19 07:18:42,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:42,310 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:18:42,364 WARN L234 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_5c171417-729d-449b-a224-413f4e23b395/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[33021,33034] [2022-11-19 07:18:42,464 WARN L234 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_5c171417-729d-449b-a224-413f4e23b395/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i[49681,49694] [2022-11-19 07:18:42,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:18:42,541 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:18:42,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42 WrapperNode [2022-11-19 07:18:42,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:18:42,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:42,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:18:42,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:18:42,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,749 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-19 07:18:42,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:18:42,750 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:18:42,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:18:42,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:18:42,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,867 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:18:42,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:18:42,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:18:42,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:18:42,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (1/1) ... [2022-11-19 07:18:42,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:18:42,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:42,965 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:18:42,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:18:43,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:18:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:18:43,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:18:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:18:43,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:18:43,017 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:18:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:18:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:18:43,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:18:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:18:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:18:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:18:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:18:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:18:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:18:43,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:18:43,404 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:18:43,407 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:18:45,602 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:18:46,327 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:18:46,327 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-19 07:18:46,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:46 BoogieIcfgContainer [2022-11-19 07:18:46,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:18:46,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:18:46,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:18:46,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:18:46,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:18:41" (1/3) ... [2022-11-19 07:18:46,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbb5ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:46, skipping insertion in model container [2022-11-19 07:18:46,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:18:42" (2/3) ... [2022-11-19 07:18:46,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bbb5ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:18:46, skipping insertion in model container [2022-11-19 07:18:46,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:18:46" (3/3) ... [2022-11-19 07:18:46,351 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2022-11-19 07:18:46,372 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:18:46,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 07:18:46,450 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:18:46,457 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;@17291f2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:18:46,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:18:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:18:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:18:46,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:46,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:18:46,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:46,478 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-19 07:18:46,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:46,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225581344] [2022-11-19 07:18:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:46,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:46,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:46,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225581344] [2022-11-19 07:18:46,653 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:18:46,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756935037] [2022-11-19 07:18:46,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:46,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:46,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:46,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:46,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:18:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:46,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 07:18:46,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:46,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:46,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:18:46,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756935037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:46,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:46,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:18:46,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779186644] [2022-11-19 07:18:46,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:46,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:18:46,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:47,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:18:47,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:18:47,045 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:48,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:48,097 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-19 07:18:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:18:48,105 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-19 07:18:48,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:48,113 INFO L225 Difference]: With dead ends: 353 [2022-11-19 07:18:48,113 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 07:18:48,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:18:48,120 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:48,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:18:48,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 07:18:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 07:18:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:18:48,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 07:18:48,168 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 07:18:48,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:48,168 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 07:18:48,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 07:18:48,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 07:18:48,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:48,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:48,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:18:48,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:18:48,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:48,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-19 07:18:48,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:48,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044158304] [2022-11-19 07:18:48,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:48,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:48,412 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:48,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044158304] [2022-11-19 07:18:48,412 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 07:18:48,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752531240] [2022-11-19 07:18:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:48,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:48,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:48,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:48,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:18:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:48,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:18:48,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:48,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:18:48,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752531240] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:48,823 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:48,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:18:48,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955520330] [2022-11-19 07:18:48,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:48,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:48,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:48,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:48,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:48,827 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:51,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:18:51,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:51,026 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 07:18:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:51,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-19 07:18:51,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:51,034 INFO L225 Difference]: With dead ends: 342 [2022-11-19 07:18:51,034 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 07:18:51,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:51,036 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:51,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-19 07:18:51,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 07:18:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 07:18:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:18:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 07:18:51,059 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 07:18:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:51,059 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 07:18:51,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:18:51,060 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 07:18:51,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 07:18:51,062 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:51,062 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:51,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:18:51,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:51,268 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:51,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:51,269 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-19 07:18:51,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:51,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581967933] [2022-11-19 07:18:51,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:51,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:51,563 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:18:51,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [857645331] [2022-11-19 07:18:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:51,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:51,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:51,565 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:51,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:18:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:52,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:18:52,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:53,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:53,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:18:53,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:53,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:53,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581967933] [2022-11-19 07:18:53,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:18:53,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857645331] [2022-11-19 07:18:53,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857645331] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:18:53,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2143528434] [2022-11-19 07:18:53,251 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 07:18:53,252 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:18:53,256 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:18:53,262 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:18:53,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:18:53,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,494 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:18:53,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:18:53,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,518 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 [2022-11-19 07:18:53,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,579 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 [2022-11-19 07:18:53,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:18:53,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,614 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 07:18:53,615 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 [2022-11-19 07:18:53,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,678 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:18:53,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:18:53,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,709 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 [2022-11-19 07:18:53,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:53,725 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 22 treesize of output 30 [2022-11-19 07:18:54,255 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 [2022-11-19 07:18:54,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,326 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 [2022-11-19 07:18:54,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:54,401 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 [2022-11-19 07:18:54,448 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 [2022-11-19 07:18:55,021 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 [2022-11-19 07:18:55,044 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 [2022-11-19 07:18:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,131 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 [2022-11-19 07:18:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:18:55,195 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 [2022-11-19 07:18:55,244 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:19:02,306 WARN L233 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:10,840 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:10,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [2143528434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:10,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:19:10,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 07:19:10,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623502694] [2022-11-19 07:19:10,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:10,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:19:10,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:10,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:19:10,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:19:10,849 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:19:14,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:19:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:15,543 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 07:19:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:19:15,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-11-19 07:19:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:15,545 INFO L225 Difference]: With dead ends: 310 [2022-11-19 07:19:15,545 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 07:19:15,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-19 07:19:15,547 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 7 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:15,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 586 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 81 Unchecked, 4.7s Time] [2022-11-19 07:19:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 07:19:15,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 07:19:15,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 07:19:15,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 07:19:15,599 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 07:19:15,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:15,600 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 07:19:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:19:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 07:19:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 07:19:15,602 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:15,603 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:19:15,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:19:15,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:15,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:15,804 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-19 07:19:15,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:15,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545039217] [2022-11-19 07:19:15,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:15,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:15,968 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:19:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724621616] [2022-11-19 07:19:15,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:15,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:15,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:15,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:15,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:19:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:17,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:19:17,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:19:17,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 07:19:17,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:17,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545039217] [2022-11-19 07:19:17,515 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:19:17,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724621616] [2022-11-19 07:19:17,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724621616] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:17,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [67595760] [2022-11-19 07:19:17,520 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:19:17,520 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:17,521 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:17,521 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:17,521 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:17,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,632 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:19:17,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:19:17,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,645 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 [2022-11-19 07:19:17,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,699 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:19:17,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:19:17,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,717 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 [2022-11-19 07:19:17,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,764 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:19:17,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:19:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:19:17,785 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 [2022-11-19 07:19:17,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:17,807 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 [2022-11-19 07:19:18,126 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 [2022-11-19 07:19:18,195 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 [2022-11-19 07:19:18,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,247 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 [2022-11-19 07:19:18,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,290 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 [2022-11-19 07:19:18,343 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 [2022-11-19 07:19:18,357 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 [2022-11-19 07:19:18,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,414 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 [2022-11-19 07:19:18,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,466 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 [2022-11-19 07:19:18,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,549 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 [2022-11-19 07:19:18,581 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 [2022-11-19 07:19:18,608 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 [2022-11-19 07:19:18,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,680 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:19:18,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:19:18,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:18,768 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:19:18,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:19:19,507 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 [2022-11-19 07:19:19,525 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 [2022-11-19 07:19:19,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,581 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 [2022-11-19 07:19:19,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,627 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 [2022-11-19 07:19:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,749 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 9897003 treesize of output 5376293 [2022-11-19 07:19:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,804 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 9897003 treesize of output 5376293 [2022-11-19 07:19:19,842 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 [2022-11-19 07:19:19,856 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 [2022-11-19 07:19:19,912 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 [2022-11-19 07:19:19,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:19,953 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 [2022-11-19 07:19:20,001 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 [2022-11-19 07:19:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,078 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:19:20,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:19:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:19:20,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 07:19:20,481 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 07:19:20,586 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:19:28,874 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:36,705 WARN L233 SmtUtils]: Spent 5.71s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:46,798 WARN L233 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:00,586 WARN L233 SmtUtils]: Spent 7.63s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:15,688 WARN L233 SmtUtils]: Spent 8.91s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:20:16,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [67595760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:16,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 07:20:16,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 07:20:16,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550222229] [2022-11-19 07:20:16,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:16,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:20:16,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:20:16,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:20:16,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:20:16,561 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:20:20,419 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 [] [2022-11-19 07:20:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:21,369 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 07:20:21,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:20:21,370 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-19 07:20:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:21,371 INFO L225 Difference]: With dead ends: 315 [2022-11-19 07:20:21,371 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 07:20:21,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 56.0s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-19 07:20:21,373 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 8 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 193 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:21,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 616 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 193 Unchecked, 4.8s Time] [2022-11-19 07:20:21,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 07:20:21,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 07:20:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-19 07:20:21,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 07:20:21,404 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 07:20:21,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:21,405 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 07:20:21,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:20:21,405 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 07:20:21,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 07:20:21,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:21,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:21,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:20:21,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:21,622 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:21,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:21,622 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-19 07:20:21,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:21,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25821053] [2022-11-19 07:20:21,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:21,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:21,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:20:21,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605497242] [2022-11-19 07:20:21,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:21,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:20:21,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:21,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:20:21,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c171417-729d-449b-a224-413f4e23b395/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 07:20:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:23,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:20:23,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:20:23,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:20:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 07:20:23,422 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:20:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25821053] [2022-11-19 07:20:23,422 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:20:23,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605497242] [2022-11-19 07:20:23,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605497242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:20:23,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1075151681] [2022-11-19 07:20:23,427 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 07:20:23,428 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:20:23,428 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:20:23,428 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:20:23,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:20:23,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,529 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:20:23,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 07:20:23,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,546 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 [2022-11-19 07:20:23,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,573 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 [2022-11-19 07:20:23,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,623 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 07:20:23,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 07:20:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,712 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:20:23,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 07:20:23,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:20:23,734 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 [2022-11-19 07:20:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:23,758 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 [2022-11-19 07:20:24,108 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 [2022-11-19 07:20:24,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,201 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 [2022-11-19 07:20:24,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,256 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 [2022-11-19 07:20:24,295 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 [2022-11-19 07:20:24,329 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 [2022-11-19 07:20:24,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,394 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 [2022-11-19 07:20:24,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,446 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 [2022-11-19 07:20:24,476 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 [2022-11-19 07:20:24,532 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 [2022-11-19 07:20:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,618 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 07:20:24,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-19 07:20:24,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,716 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:20:24,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:20:24,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:24,783 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 [2022-11-19 07:20:24,824 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 [2022-11-19 07:20:24,994 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 [2022-11-19 07:20:24,999 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 [2022-11-19 07:20:25,005 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 [2022-11-19 07:20:25,032 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 [2022-11-19 07:20:25,041 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 [2022-11-19 07:20:25,051 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 [2022-11-19 07:20:25,075 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 [2022-11-19 07:20:25,081 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 [2022-11-19 07:20:25,087 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 [2022-11-19 07:20:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,269 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 [2022-11-19 07:20:25,314 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 [2022-11-19 07:20:25,340 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 [2022-11-19 07:20:25,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:20:25,594 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 [2022-11-19 07:20:25,620 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 [2022-11-19 07:20:25,642 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 [2022-11-19 07:20:27,337 INFO L217 Elim1Store]: Index analysis took 1254 ms [2022-11-19 07:20:35,410 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:20:35,411 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 07:20:35,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-19 07:20:37,580 INFO L217 Elim1Store]: Index analysis took 2015 ms [2022-11-19 07:20:38,284 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 07:20:38,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-19 07:24:04,601 WARN L233 SmtUtils]: Spent 3.43m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:24:04,602 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-19 07:24:04,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-19 07:24:05,130 INFO L217 Elim1Store]: Index analysis took 207 ms [2022-11-19 07:25:28,105 WARN L233 SmtUtils]: Spent 1.38m 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) [2022-11-19 07:25:28,106 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:25:28,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-11-19 07:25:33,174 INFO L217 Elim1Store]: Index analysis took 3239 ms