./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/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_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/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_f092ca89-673d-43e5-9ada-460d641afbd1/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 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- 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 14:37:17,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:37:17,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:37:17,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:37:17,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:37:17,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:37:17,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:37:17,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:37:17,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:37:17,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:37:17,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:37:17,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:37:17,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:37:17,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:37:17,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:37:17,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:37:17,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:37:17,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:37:17,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:37:17,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:37:17,940 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:37:17,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:37:17,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:37:17,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:37:17,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:37:17,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:37:17,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:37:17,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:37:17,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:37:17,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:37:17,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:37:17,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:37:17,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:37:17,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:37:17,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:37:17,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:37:17,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:37:17,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:37:17,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:37:17,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:37:17,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:37:17,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:37:17,991 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:37:17,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:37:17,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:37:17,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:37:17,993 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:37:17,993 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:37:17,993 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:37:17,993 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:37:17,993 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:37:17,994 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:37:17,994 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:37:17,994 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:37:17,994 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:37:17,995 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:37:17,995 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:37:17,995 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:37:17,995 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:37:17,995 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:37:17,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:37:17,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:37:17,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:37:17,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:37:17,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:37:17,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:37:17,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:37:17,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:37:17,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:37:17,998 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:37:17,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:37:17,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:37:17,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:37:17,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:37:17,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:37:18,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:37:18,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:18,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:37:18,000 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:37:18,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:37:18,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:37:18,001 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:37:18,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:37:18,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:37:18,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:37:18,002 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_f092ca89-673d-43e5-9ada-460d641afbd1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2022-11-23 14:37:18,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:37:18,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:37:18,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:37:18,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:37:18,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:37:18,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-11-23 14:37:21,566 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:37:21,967 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:37:21,969 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2022-11-23 14:37:21,982 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/data/1a5f2e783/9b13f7803b3642f5bba8ae4fb28a4598/FLAGdfb5214ec [2022-11-23 14:37:21,996 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/data/1a5f2e783/9b13f7803b3642f5bba8ae4fb28a4598 [2022-11-23 14:37:21,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:37:22,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:37:22,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:22,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:37:22,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:37:22,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:21" (1/1) ... [2022-11-23 14:37:22,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63067c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22, skipping insertion in model container [2022-11-23 14:37:22,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:37:21" (1/1) ... [2022-11-23 14:37:22,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:37:22,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:37:22,526 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_f092ca89-673d-43e5-9ada-460d641afbd1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-11-23 14:37:22,682 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_f092ca89-673d-43e5-9ada-460d641afbd1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-11-23 14:37:22,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:22,705 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:37:22,748 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_f092ca89-673d-43e5-9ada-460d641afbd1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2022-11-23 14:37:22,850 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_f092ca89-673d-43e5-9ada-460d641afbd1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2022-11-23 14:37:22,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:37:22,952 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:37:22,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22 WrapperNode [2022-11-23 14:37:22,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:37:22,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:22,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:37:22,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:37:22,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,105 INFO L138 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1185 [2022-11-23 14:37:23,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:37:23,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:37:23,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:37:23,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:37:23,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:37:23,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:37:23,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:37:23,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:37:23,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (1/1) ... [2022-11-23 14:37:23,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:37:23,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:23,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:37:23,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:37:23,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:37:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:37:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:37:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:37:23,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:37:23,388 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:37:23,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:37:23,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:37:23,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:37:23,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:37:23,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:37:23,698 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:37:23,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:37:25,469 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:37:25,958 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:37:25,959 INFO L300 CfgBuilder]: Removed 72 assume(true) statements. [2022-11-23 14:37:25,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:25 BoogieIcfgContainer [2022-11-23 14:37:25,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:37:25,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:37:25,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:37:25,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:37:25,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:37:21" (1/3) ... [2022-11-23 14:37:25,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4facb64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:25, skipping insertion in model container [2022-11-23 14:37:25,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:37:22" (2/3) ... [2022-11-23 14:37:25,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4facb64d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:37:25, skipping insertion in model container [2022-11-23 14:37:25,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:37:25" (3/3) ... [2022-11-23 14:37:25,974 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2022-11-23 14:37:25,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:37:25,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:37:26,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:37:26,056 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;@5ceb9cd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:37:26,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 14:37:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 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 14:37:26,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:37:26,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:26,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:37:26,068 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 14:37:26,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:26,074 INFO L85 PathProgramCache]: Analyzing trace with hash 29805783, now seen corresponding path program 1 times [2022-11-23 14:37:26,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:26,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003036302] [2022-11-23 14:37:26,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:26,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:26,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:37:26,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323779828] [2022-11-23 14:37:26,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:26,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:26,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:26,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:37:26,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:37:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:26,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:37:26,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:37:26,524 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 14:37:26,537 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 14:37:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:37:26,596 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 14:37:26,633 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 14:37:26,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:37:26,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:26,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003036302] [2022-11-23 14:37:26,634 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:37:26,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323779828] [2022-11-23 14:37:26,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323779828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:26,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:26,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:37:26,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151185530] [2022-11-23 14:37:26,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:26,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:37:26,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:26,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:37:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:37:26,703 INFO L87 Difference]: Start difference. First operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 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 14:37:28,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:28,233 INFO L93 Difference]: Finished difference Result 365 states and 629 transitions. [2022-11-23 14:37:28,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:37:28,239 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 14:37:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:28,250 INFO L225 Difference]: With dead ends: 365 [2022-11-23 14:37:28,250 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 14:37:28,254 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 14:37:28,257 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 77 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:28,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 396 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-23 14:37:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 14:37:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2022-11-23 14:37:28,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 130 states have internal predecessors, (149), 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 14:37:28,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2022-11-23 14:37:28,314 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 4 [2022-11-23 14:37:28,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:28,315 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2022-11-23 14:37:28,315 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 14:37:28,315 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2022-11-23 14:37:28,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 14:37:28,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:28,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:37:28,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:37:28,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:37:28,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:37:28,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1816263681, now seen corresponding path program 1 times [2022-11-23 14:37:28,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:28,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387147164] [2022-11-23 14:37:28,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:28,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:28,847 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 14:37:28,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:28,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387147164] [2022-11-23 14:37:28,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387147164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:28,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:28,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:37:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510560777] [2022-11-23 14:37:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:28,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:37:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:37:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:37:28,852 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 14:37:30,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:30,997 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2022-11-23 14:37:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:37:31,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 14:37:31,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:31,002 INFO L225 Difference]: With dead ends: 266 [2022-11-23 14:37:31,002 INFO L226 Difference]: Without dead ends: 195 [2022-11-23 14:37:31,003 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 14:37:31,004 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 68 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:31,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 379 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-23 14:37:31,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-23 14:37:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 136. [2022-11-23 14:37:31,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 130 states have internal predecessors, (148), 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 14:37:31,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2022-11-23 14:37:31,018 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 9 [2022-11-23 14:37:31,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:31,019 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2022-11-23 14:37:31,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 14:37:31,019 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2022-11-23 14:37:31,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:37:31,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:31,021 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 14:37:31,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:37:31,021 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 14:37:31,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1794181175, now seen corresponding path program 1 times [2022-11-23 14:37:31,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:31,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044146265] [2022-11-23 14:37:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:31,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:31,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:37:31,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796092707] [2022-11-23 14:37:31,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:31,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:31,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:31,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:37:31,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:37:31,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:31,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:37:31,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:37:31,995 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 14:37:31,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:37:31,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:31,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044146265] [2022-11-23 14:37:31,996 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:37:31,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796092707] [2022-11-23 14:37:31,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796092707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:31,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:31,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:37:31,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525589454] [2022-11-23 14:37:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:31,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:37:31,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:31,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:37:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:37:31,999 INFO L87 Difference]: Start difference. First operand 136 states and 164 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 14:37:33,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:33,361 INFO L93 Difference]: Finished difference Result 332 states and 405 transitions. [2022-11-23 14:37:33,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:37:33,366 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 14:37:33,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:33,368 INFO L225 Difference]: With dead ends: 332 [2022-11-23 14:37:33,368 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 14:37:33,369 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 14:37:33,370 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 64 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:33,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 300 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 14:37:33,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 14:37:33,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2022-11-23 14:37:33,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 175 states have internal predecessors, (200), 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 14:37:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2022-11-23 14:37:33,385 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 28 [2022-11-23 14:37:33,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:33,386 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2022-11-23 14:37:33,386 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 14:37:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2022-11-23 14:37:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:37:33,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:33,388 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 14:37:33,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:37:33,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:33,597 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 14:37:33,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:33,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1709113415, now seen corresponding path program 1 times [2022-11-23 14:37:33,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:33,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521016876] [2022-11-23 14:37:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:33,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:33,678 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:37:33,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124179434] [2022-11-23 14:37:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:33,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:33,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:33,680 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:37:33,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:37:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:37:55,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 14:37:55,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:37:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:37:55,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:37:55,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:37:55,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521016876] [2022-11-23 14:37:55,711 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:37:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124179434] [2022-11-23 14:37:55,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124179434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:37:55,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:37:55,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:37:55,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892916102] [2022-11-23 14:37:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:37:55,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:37:55,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:37:55,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:37:55,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:37:55,715 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:37:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:37:56,668 INFO L93 Difference]: Finished difference Result 346 states and 418 transitions. [2022-11-23 14:37:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:37:56,673 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-23 14:37:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:37:56,674 INFO L225 Difference]: With dead ends: 346 [2022-11-23 14:37:56,674 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 14:37:56,675 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 14:37:56,676 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:37:56,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 419 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 14:37:56,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 14:37:56,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-23 14:37:56,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 164 states have (on average 1.2317073170731707) internal successors, (202), 177 states have internal predecessors, (202), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2022-11-23 14:37:56,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 219 transitions. [2022-11-23 14:37:56,691 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 219 transitions. Word has length 41 [2022-11-23 14:37:56,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:37:56,692 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 219 transitions. [2022-11-23 14:37:56,692 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:37:56,692 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 219 transitions. [2022-11-23 14:37:56,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:37:56,693 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:37:56,694 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 14:37:56,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:37:56,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:56,915 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 14:37:56,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:37:56,915 INFO L85 PathProgramCache]: Analyzing trace with hash 481434719, now seen corresponding path program 1 times [2022-11-23 14:37:56,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:37:56,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599649493] [2022-11-23 14:37:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:56,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:37:56,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:37:56,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2094054362] [2022-11-23 14:37:56,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:37:56,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:37:56,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:37:56,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:37:56,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f092ca89-673d-43e5-9ada-460d641afbd1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:38:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:38:23,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 14:38:23,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:38:23,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:38:23,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:38:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:38:23,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:38:23,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599649493] [2022-11-23 14:38:23,726 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:38:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094054362] [2022-11-23 14:38:23,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094054362] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:38:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1174297422] [2022-11-23 14:38:23,747 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-23 14:38:23,747 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:38:23,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:38:23,757 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:38:23,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:38:23,823 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 14:38:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,853 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:38:23,853 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 14:38:23,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 14:38:23,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:38:23,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:38:23,924 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 14:38:23,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,950 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:38:23,950 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 14:38:23,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:23,999 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:38:23,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-23 14:38:24,017 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 14:38:24,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,107 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:38:24,108 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 14:38:24,162 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 14:38:24,173 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 14:38:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,193 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 14:38:24,671 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 14:38:24,691 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 14:38:24,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,750 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 14:38:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,804 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 14:38:24,876 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 14:38:24,891 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 14:38:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:24,970 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 14:38:25,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,031 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 14:38:25,123 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 14:38:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,194 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:38:25,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 14:38:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,286 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:38:25,286 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 14:38:25,318 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 14:38:25,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,410 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 14:38:25,604 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 14:38:25,609 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 14:38:25,615 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 14:38:25,642 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 14:38:25,650 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 14:38:25,659 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 14:38:25,679 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 14:38:25,684 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 14:38:25,690 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 14:38:25,753 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 14:38:25,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:25,801 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 14:38:25,822 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 14:38:26,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:38:26,085 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 14:38:26,120 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 14:38:26,139 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 14:38:27,459 INFO L217 Elim1Store]: Index analysis took 1023 ms [2022-11-23 14:38:33,314 WARN L233 SmtUtils]: Spent 5.85s 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 14:38:33,315 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:38:33,316 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 14:38:35,535 INFO L217 Elim1Store]: Index analysis took 1942 ms [2022-11-23 14:38:37,498 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:38:37,499 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 14:41:53,915 WARN L233 SmtUtils]: Spent 3.27m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:41:53,916 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-23 14:41:53,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5842 [2022-11-23 14:41:54,342 INFO L217 Elim1Store]: Index analysis took 109 ms [2022-11-23 14:43:32,656 WARN L233 SmtUtils]: Spent 1.64m 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 14:43:32,657 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:43:32,658 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 7180 treesize of output 5993 [2022-11-23 14:43:40,830 INFO L217 Elim1Store]: Index analysis took 5972 ms