./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e --- 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-4e7fbc6 [2022-11-23 16:08:28,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 16:08:28,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 16:08:28,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 16:08:28,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 16:08:28,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 16:08:28,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 16:08:28,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 16:08:28,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 16:08:28,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 16:08:28,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 16:08:28,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 16:08:28,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 16:08:28,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 16:08:28,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 16:08:28,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 16:08:28,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 16:08:28,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 16:08:28,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 16:08:28,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 16:08:28,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 16:08:28,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 16:08:28,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 16:08:28,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 16:08:28,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 16:08:28,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 16:08:28,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 16:08:28,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 16:08:28,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 16:08:28,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 16:08:28,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 16:08:28,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 16:08:28,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 16:08:28,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 16:08:28,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 16:08:28,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 16:08:28,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 16:08:28,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 16:08:28,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 16:08:28,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 16:08:28,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 16:08:28,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 16:08:28,969 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 16:08:28,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 16:08:28,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 16:08:28,976 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 16:08:28,977 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 16:08:28,977 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 16:08:28,977 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 16:08:28,978 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 16:08:28,978 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 16:08:28,978 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 16:08:28,979 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 16:08:28,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 16:08:28,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 16:08:28,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 16:08:28,981 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 16:08:28,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 16:08:28,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 16:08:28,981 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 16:08:28,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 16:08:28,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 16:08:28,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 16:08:28,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 16:08:28,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 16:08:28,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 16:08:28,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 16:08:28,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 16:08:28,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 16:08:28,985 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 16:08:28,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 16:08:28,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 16:08:28,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 16:08:28,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 16:08:28,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 16:08:28,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 16:08:28,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:08:28,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 16:08:28,988 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 16:08:28,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 16:08:28,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 16:08:28,989 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 16:08:28,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 16:08:28,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 16:08:28,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 16:08:28,990 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e [2022-11-23 16:08:29,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 16:08:29,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 16:08:29,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 16:08:29,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 16:08:29,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 16:08:29,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2022-11-23 16:08:32,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 16:08:32,710 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 16:08:32,710 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2022-11-23 16:08:32,728 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/data/0b3c98a34/47fe05fe65d94a2aae1e9db24e711b5c/FLAG9622c9176 [2022-11-23 16:08:32,747 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/data/0b3c98a34/47fe05fe65d94a2aae1e9db24e711b5c [2022-11-23 16:08:32,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 16:08:32,752 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 16:08:32,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 16:08:32,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 16:08:32,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 16:08:32,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:08:32" (1/1) ... [2022-11-23 16:08:32,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c367cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:32, skipping insertion in model container [2022-11-23 16:08:32,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:08:32" (1/1) ... [2022-11-23 16:08:32,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 16:08:32,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 16:08:33,429 WARN L237 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2022-11-23 16:08:33,585 WARN L237 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2022-11-23 16:08:33,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:08:33,615 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 16:08:33,670 WARN L237 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2022-11-23 16:08:33,753 WARN L237 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_db0dc115-3777-4a80-aa9a-bea57876fc4a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2022-11-23 16:08:33,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 16:08:33,798 INFO L208 MainTranslator]: Completed translation [2022-11-23 16:08:33,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33 WrapperNode [2022-11-23 16:08:33,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 16:08:33,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 16:08:33,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 16:08:33,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 16:08:33,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:33,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:33,981 INFO L138 Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 888 [2022-11-23 16:08:33,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 16:08:33,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 16:08:33,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 16:08:33,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 16:08:33,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:33,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 16:08:34,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 16:08:34,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 16:08:34,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 16:08:34,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (1/1) ... [2022-11-23 16:08:34,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 16:08:34,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:08:34,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 16:08:34,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 16:08:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 16:08:34,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 16:08:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 16:08:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 16:08:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 16:08:34,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 16:08:34,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 16:08:34,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 16:08:34,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 16:08:34,400 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 16:08:34,402 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 16:08:35,869 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 16:08:36,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 16:08:36,251 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-23 16:08:36,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:08:36 BoogieIcfgContainer [2022-11-23 16:08:36,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 16:08:36,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 16:08:36,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 16:08:36,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 16:08:36,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:08:32" (1/3) ... [2022-11-23 16:08:36,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7fac24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:08:36, skipping insertion in model container [2022-11-23 16:08:36,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:08:33" (2/3) ... [2022-11-23 16:08:36,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7fac24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:08:36, skipping insertion in model container [2022-11-23 16:08:36,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:08:36" (3/3) ... [2022-11-23 16:08:36,264 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-1.i [2022-11-23 16:08:36,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 16:08:36,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 16:08:36,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 16:08:36,343 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;@3adf4fb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 16:08:36,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 16:08:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:08:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 16:08:36,354 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:36,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 16:08:36,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 16:08:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:36,361 INFO L85 PathProgramCache]: Analyzing trace with hash 22737132, now seen corresponding path program 1 times [2022-11-23 16:08:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:36,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881072968] [2022-11-23 16:08:36,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:36,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:36,487 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:08:36,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529429737] [2022-11-23 16:08:36,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:36,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:36,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:08:36,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:08:36,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 16:08:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:36,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 16:08:36,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:08:36,796 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 11 treesize of output 7 [2022-11-23 16:08:36,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 16:08:36,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:08:36,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 16:08:36,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:08:36,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:08:36,892 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:36,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881072968] [2022-11-23 16:08:36,893 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:08:36,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529429737] [2022-11-23 16:08:36,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529429737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:36,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:36,894 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:08:36,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155423187] [2022-11-23 16:08:36,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:36,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:08:36,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:08:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:08:36,954 INFO L87 Difference]: Start difference. First operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 16:08:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:38,639 INFO L93 Difference]: Finished difference Result 308 states and 522 transitions. [2022-11-23 16:08:38,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:08:38,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-23 16:08:38,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:38,653 INFO L225 Difference]: With dead ends: 308 [2022-11-23 16:08:38,653 INFO L226 Difference]: Without dead ends: 187 [2022-11-23 16:08:38,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:08:38,660 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:38,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 333 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 16:08:38,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-23 16:08:38,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2022-11-23 16:08:38,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 115 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:08:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2022-11-23 16:08:38,711 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 4 [2022-11-23 16:08:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:38,712 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2022-11-23 16:08:38,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-23 16:08:38,712 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2022-11-23 16:08:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 16:08:38,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:38,714 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] [2022-11-23 16:08:38,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 16:08:38,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:38,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 16:08:38,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash 196565253, now seen corresponding path program 1 times [2022-11-23 16:08:38,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:38,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491465757] [2022-11-23 16:08:38,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:38,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:39,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:08:39,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:39,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491465757] [2022-11-23 16:08:39,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491465757] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:39,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:39,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 16:08:39,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297006447] [2022-11-23 16:08:39,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:39,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:08:39,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:39,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:08:39,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:08:39,392 INFO L87 Difference]: Start difference. First operand 121 states and 147 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:40,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:40,972 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-11-23 16:08:40,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:08:40,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-23 16:08:40,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:40,980 INFO L225 Difference]: With dead ends: 230 [2022-11-23 16:08:40,980 INFO L226 Difference]: Without dead ends: 174 [2022-11-23 16:08:40,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:08:40,982 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:40,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 16:08:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-23 16:08:40,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 121. [2022-11-23 16:08:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 115 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 16:08:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-11-23 16:08:41,003 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 20 [2022-11-23 16:08:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:41,003 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-11-23 16:08:41,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-11-23 16:08:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 16:08:41,008 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:41,008 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] [2022-11-23 16:08:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 16:08:41,009 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 16:08:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash 592905191, now seen corresponding path program 1 times [2022-11-23 16:08:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:41,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766235206] [2022-11-23 16:08:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:41,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:41,162 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:08:41,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494052179] [2022-11-23 16:08:41,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:41,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:41,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:08:41,170 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:08:41,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 16:08:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:41,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:08:41,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:08:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:08:42,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:08:42,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:42,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766235206] [2022-11-23 16:08:42,015 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:08:42,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494052179] [2022-11-23 16:08:42,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494052179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:42,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:42,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 16:08:42,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049097729] [2022-11-23 16:08:42,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:42,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 16:08:42,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:42,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 16:08:42,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:08:42,019 INFO L87 Difference]: Start difference. First operand 121 states and 146 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:42,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:42,633 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2022-11-23 16:08:42,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 16:08:42,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-23 16:08:42,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:42,642 INFO L225 Difference]: With dead ends: 288 [2022-11-23 16:08:42,642 INFO L226 Difference]: Without dead ends: 172 [2022-11-23 16:08:42,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 16:08:42,644 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:42,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 256 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 16:08:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-23 16:08:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2022-11-23 16:08:42,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 162 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 16:08:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2022-11-23 16:08:42,659 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 28 [2022-11-23 16:08:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:42,659 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2022-11-23 16:08:42,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 16:08:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2022-11-23 16:08:42,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 16:08:42,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:42,661 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] [2022-11-23 16:08:42,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 16:08:42,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:42,865 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 16:08:42,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:42,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1496687605, now seen corresponding path program 1 times [2022-11-23 16:08:42,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:42,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052486677] [2022-11-23 16:08:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:42,933 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:08:42,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [951192063] [2022-11-23 16:08:42,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:42,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:42,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:08:42,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:08:42,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 16:08:57,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:08:57,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 16:08:57,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:08:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 16:08:57,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 16:08:57,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:08:57,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052486677] [2022-11-23 16:08:57,602 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:08:57,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951192063] [2022-11-23 16:08:57,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951192063] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 16:08:57,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 16:08:57,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 16:08:57,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489691278] [2022-11-23 16:08:57,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 16:08:57,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 16:08:57,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 16:08:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 16:08:57,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 16:08:57,609 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:08:59,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 16:08:59,256 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2022-11-23 16:08:59,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 16:08:59,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-11-23 16:08:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 16:08:59,263 INFO L225 Difference]: With dead ends: 320 [2022-11-23 16:08:59,263 INFO L226 Difference]: Without dead ends: 170 [2022-11-23 16:08:59,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 16:08:59,265 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-23 16:08:59,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 377 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-23 16:08:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-23 16:08:59,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-23 16:08:59,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 164 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-23 16:08:59,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2022-11-23 16:08:59,283 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 41 [2022-11-23 16:08:59,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 16:08:59,284 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2022-11-23 16:08:59,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 16:08:59,284 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2022-11-23 16:08:59,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 16:08:59,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 16:08:59,286 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-11-23 16:08:59,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 16:08:59,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:59,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 16:08:59,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 16:08:59,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1899561301, now seen corresponding path program 1 times [2022-11-23 16:08:59,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 16:08:59,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904320857] [2022-11-23 16:08:59,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:59,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 16:08:59,608 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 16:08:59,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [796297137] [2022-11-23 16:08:59,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 16:08:59,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 16:08:59,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 16:08:59,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 16:08:59,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0dc115-3777-4a80-aa9a-bea57876fc4a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 16:09:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 16:09:24,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 16:09:24,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 16:09:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 16:09:24,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 16:09:24,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 16:09:24,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 16:09:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904320857] [2022-11-23 16:09:24,174 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 16:09:24,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796297137] [2022-11-23 16:09:24,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796297137] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 16:09:24,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1715486609] [2022-11-23 16:09:24,195 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-23 16:09:24,195 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 16:09:24,198 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 16:09:24,204 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 16:09:24,204 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 16:09:24,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:09:24,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,284 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 16:09:24,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 16:09:24,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 16:09:24,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:09:24,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,326 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 16:09:24,327 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 [2022-11-23 16:09:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,376 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 16:09:24,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 16:09:24,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:09:24,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,433 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 16:09:24,434 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 [2022-11-23 16:09:24,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 16:09:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,459 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 [2022-11-23 16:09:24,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 16:09:24,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 16:09:24,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:24,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 84 treesize of output 64 [2022-11-23 16:09:25,011 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 [2022-11-23 16:09:25,032 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 [2022-11-23 16:09:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-23 16:09:25,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9896993 treesize of output 5376298 [2022-11-23 16:09:25,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:09:25,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:09:25,422 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 [2022-11-23 16:09:25,441 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 [2022-11-23 16:09:25,510 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 [2022-11-23 16:09:25,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,592 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 16:09:25,592 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 [2022-11-23 16:09:25,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,621 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 [2022-11-23 16:09:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:25,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 16:09:25,724 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 [2022-11-23 16:09:25,949 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 [2022-11-23 16:09:25,954 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 [2022-11-23 16:09:25,960 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 [2022-11-23 16:09:25,985 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 [2022-11-23 16:09:25,994 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 [2022-11-23 16:09:26,002 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 [2022-11-23 16:09:26,023 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 [2022-11-23 16:09:26,029 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 [2022-11-23 16:09:26,035 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 [2022-11-23 16:09:26,100 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 [2022-11-23 16:09:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:09:26,178 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 [2022-11-23 16:09:26,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:09:26,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 16:09:26,417 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 [2022-11-23 16:09:26,436 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 [2022-11-23 16:09:27,902 INFO L217 Elim1Store]: Index analysis took 1130 ms [2022-11-23 16:09:35,440 WARN L233 SmtUtils]: Spent 7.53s 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) [2022-11-23 16:09:35,441 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 16:09:35,441 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 9519777 treesize of output 9519796 [2022-11-23 16:09:38,667 INFO L217 Elim1Store]: Index analysis took 3007 ms [2022-11-23 16:09:40,747 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 16:09:40,747 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 9519772 treesize of output 9519776 [2022-11-23 16:09:53,061 WARN L233 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 16:09:53,062 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 16:09:53,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1476 [2022-11-23 16:09:53,564 INFO L217 Elim1Store]: Index analysis took 280 ms [2022-11-23 16:10:21,590 WARN L233 SmtUtils]: Spent 28.02s 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) [2022-11-23 16:10:21,590 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 16:10:21,591 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 2005 treesize of output 1814 [2022-11-23 16:10:23,292 INFO L217 Elim1Store]: Index analysis took 861 ms [2022-11-23 16:11:00,722 WARN L233 SmtUtils]: Spent 36.39s on a formula simplification. DAG size of input: 261 DAG size of output: 159 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 16:11:00,723 INFO L321 Elim1Store]: treesize reduction 22290, result has 25.6 percent of original size [2022-11-23 16:11:00,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 5638 treesize of output 15985 [2022-11-23 16:11:01,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:01,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-23 16:11:02,267 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:11:02,337 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:11:02,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:02,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:02,586 INFO L217 Elim1Store]: Index analysis took 113 ms [2022-11-23 16:11:02,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 61 [2022-11-23 16:11:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:02,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:02,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28 [2022-11-23 16:11:02,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:02,979 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 69 [2022-11-23 16:11:03,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:03,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 16:11:03,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2022-11-23 16:11:05,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:11:05,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2022-11-23 16:11:33,685 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 16:12:32,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:32,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:12:32,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-23 16:13:04,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 16:13:04,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13