./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/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_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/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_d3a267a4-a48e-424c-93d7-3c32b4454196/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 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c --- 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 13:46:38,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:46:38,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:46:39,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:46:39,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:46:39,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:46:39,033 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:46:39,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:46:39,038 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:46:39,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:46:39,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:46:39,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:46:39,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:46:39,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:46:39,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:46:39,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:46:39,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:46:39,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:46:39,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:46:39,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:46:39,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:46:39,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:46:39,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:46:39,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:46:39,082 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:46:39,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:46:39,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:46:39,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:46:39,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:46:39,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:46:39,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:46:39,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:46:39,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:46:39,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:46:39,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:46:39,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:46:39,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:46:39,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:46:39,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:46:39,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:46:39,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:46:39,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 13:46:39,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:46:39,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:46:39,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:46:39,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:46:39,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:46:39,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:46:39,132 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:46:39,132 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:46:39,132 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:46:39,132 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:46:39,134 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:46:39,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:46:39,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:46:39,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:46:39,135 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:46:39,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:46:39,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:46:39,136 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:46:39,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:46:39,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:46:39,137 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 13:46:39,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:46:39,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:46:39,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:46:39,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:46:39,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:46:39,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:46:39,139 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 13:46:39,139 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:46:39,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:46:39,140 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:46:39,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:46:39,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:46:39,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:46:39,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:46:39,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:46:39,142 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:46:39,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:46:39,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:46:39,142 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:46:39,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:46:39,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:46:39,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:46:39,143 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_d3a267a4-a48e-424c-93d7-3c32b4454196/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9a814f1cabb0a814aaaa0ad04ef0792a07c6fb7c73876a2da6ae85372115ff6c [2022-11-23 13:46:39,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:46:39,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:46:39,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:46:39,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:46:39,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:46:39,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2022-11-23 13:46:42,705 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:46:43,061 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:46:43,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i [2022-11-23 13:46:43,082 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/data/73008e84c/7faf3f2186b1462fb3dc8500cc414a6b/FLAG11e144114 [2022-11-23 13:46:43,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/data/73008e84c/7faf3f2186b1462fb3dc8500cc414a6b [2022-11-23 13:46:43,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:46:43,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:46:43,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:46:43,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:46:43,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:46:43,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:43" (1/1) ... [2022-11-23 13:46:43,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4886b6c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:43, skipping insertion in model container [2022-11-23 13:46:43,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:46:43" (1/1) ... [2022-11-23 13:46:43,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:46:43,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:46:43,731 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_d3a267a4-a48e-424c-93d7-3c32b4454196/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2022-11-23 13:46:43,897 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_d3a267a4-a48e-424c-93d7-3c32b4454196/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2022-11-23 13:46:43,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:46:43,929 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:46:43,971 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_d3a267a4-a48e-424c-93d7-3c32b4454196/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[33021,33034] [2022-11-23 13:46:44,056 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_d3a267a4-a48e-424c-93d7-3c32b4454196/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test3-1.i[44590,44603] [2022-11-23 13:46:44,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:46:44,093 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:46:44,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44 WrapperNode [2022-11-23 13:46:44,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:46:44,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:46:44,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:46:44,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:46:44,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,139 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,194 INFO L138 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1030 [2022-11-23 13:46:44,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:46:44,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:46:44,196 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:46:44,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:46:44,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:46:44,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:46:44,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:46:44,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:46:44,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (1/1) ... [2022-11-23 13:46:44,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:46:44,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:46:44,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:46:44,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:46:44,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:46:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 13:46:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 13:46:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:46:44,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 13:46:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 13:46:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:46:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:46:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:46:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:46:44,406 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 13:46:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:46:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:46:44,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:46:44,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:46:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:46:44,623 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:46:44,625 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:46:46,287 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:46:46,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:46:46,660 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-23 13:46:46,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:46 BoogieIcfgContainer [2022-11-23 13:46:46,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:46:46,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:46:46,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:46:46,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:46:46,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:46:43" (1/3) ... [2022-11-23 13:46:46,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d058a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:46, skipping insertion in model container [2022-11-23 13:46:46,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:46:44" (2/3) ... [2022-11-23 13:46:46,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d058a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:46:46, skipping insertion in model container [2022-11-23 13:46:46,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:46:46" (3/3) ... [2022-11-23 13:46:46,671 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test3-1.i [2022-11-23 13:46:46,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:46:46,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 13:46:46,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:46:46,746 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;@2486509c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:46:46,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 13:46:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 114 states have (on average 1.8157894736842106) internal successors, (207), 127 states have internal predecessors, (207), 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 13:46:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 13:46:46,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:46,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 13:46:46,758 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 13:46:46,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash 26079428, now seen corresponding path program 1 times [2022-11-23 13:46:46,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:46,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976126474] [2022-11-23 13:46:46,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:46,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:46,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:46:46,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758128520] [2022-11-23 13:46:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:46,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:46:46,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:46:46,890 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:46:46,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:46:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:46:47,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 13:46:47,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:46:47,193 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 13:46:47,203 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 13:46:47,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:46:47,248 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 13:46:47,257 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 13:46:47,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:46:47,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:46:47,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976126474] [2022-11-23 13:46:47,258 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:46:47,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758128520] [2022-11-23 13:46:47,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758128520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:46:47,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:46:47,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:46:47,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078924660] [2022-11-23 13:46:47,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:46:47,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:46:47,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:46:47,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:46:47,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:46:47,296 INFO L87 Difference]: Start difference. First operand has 133 states, 114 states have (on average 1.8157894736842106) internal successors, (207), 127 states have internal predecessors, (207), 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 13:46:49,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:46:49,278 INFO L93 Difference]: Finished difference Result 334 states and 573 transitions. [2022-11-23 13:46:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:46:49,283 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 13:46:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:46:49,292 INFO L225 Difference]: With dead ends: 334 [2022-11-23 13:46:49,292 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 13:46:49,296 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 13:46:49,299 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 74 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:46:49,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 369 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 13:46:49,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 13:46:49,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2022-11-23 13:46:49,347 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 13:46:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2022-11-23 13:46:49,351 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 4 [2022-11-23 13:46:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:46:49,351 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2022-11-23 13:46:49,351 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 13:46:49,352 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2022-11-23 13:46:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 13:46:49,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:49,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:46:49,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:46:49,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 13:46:49,559 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 13:46:49,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:49,559 INFO L85 PathProgramCache]: Analyzing trace with hash 114804868, now seen corresponding path program 1 times [2022-11-23 13:46:49,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:49,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251419378] [2022-11-23 13:46:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:46:49,819 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 13:46:49,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:46:49,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251419378] [2022-11-23 13:46:49,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251419378] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:46:49,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:46:49,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:46:49,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144375317] [2022-11-23 13:46:49,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:46:49,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:46:49,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:46:49,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:46:49,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:46:49,829 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 13:46:51,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:46:51,802 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2022-11-23 13:46:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:46:51,807 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 13:46:51,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:46:51,809 INFO L225 Difference]: With dead ends: 266 [2022-11-23 13:46:51,809 INFO L226 Difference]: Without dead ends: 195 [2022-11-23 13:46:51,810 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 13:46:51,811 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 68 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:46:51,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 379 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 13:46:51,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-23 13:46:51,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 136. [2022-11-23 13:46:51,832 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 13:46:51,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2022-11-23 13:46:51,833 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 9 [2022-11-23 13:46:51,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:46:51,834 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2022-11-23 13:46:51,834 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 13:46:51,834 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2022-11-23 13:46:51,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 13:46:51,835 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:51,836 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 13:46:51,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:46:51,836 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 13:46:51,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:51,837 INFO L85 PathProgramCache]: Analyzing trace with hash 462512991, now seen corresponding path program 1 times [2022-11-23 13:46:51,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:51,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089317824] [2022-11-23 13:46:51,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:51,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:51,993 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:46:51,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929292907] [2022-11-23 13:46:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:51,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:46:51,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:46:51,999 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:46:52,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:46:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:46:52,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:46:52,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:46:52,792 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 13:46:52,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:46:52,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:46:52,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089317824] [2022-11-23 13:46:52,793 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:46:52,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929292907] [2022-11-23 13:46:52,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929292907] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:46:52,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:46:52,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:46:52,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317269092] [2022-11-23 13:46:52,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:46:52,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:46:52,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:46:52,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:46:52,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:46:52,796 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 13:46:53,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:46:53,785 INFO L93 Difference]: Finished difference Result 332 states and 405 transitions. [2022-11-23 13:46:53,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:46:53,790 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 13:46:53,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:46:53,791 INFO L225 Difference]: With dead ends: 332 [2022-11-23 13:46:53,792 INFO L226 Difference]: Without dead ends: 201 [2022-11-23 13:46:53,792 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 13:46:53,793 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 64 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:46:53,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 300 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 13:46:53,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-11-23 13:46:53,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2022-11-23 13:46:53,807 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 13:46:53,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2022-11-23 13:46:53,809 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 28 [2022-11-23 13:46:53,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:46:53,809 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2022-11-23 13:46:53,810 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 13:46:53,810 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2022-11-23 13:46:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 13:46:53,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:46:53,811 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 13:46:53,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 13:46:54,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:46:54,018 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 13:46:54,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:46:54,019 INFO L85 PathProgramCache]: Analyzing trace with hash -552686343, now seen corresponding path program 1 times [2022-11-23 13:46:54,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:46:54,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015738979] [2022-11-23 13:46:54,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:54,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:46:54,089 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:46:54,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266776563] [2022-11-23 13:46:54,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:46:54,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:46:54,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:46:54,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:46:54,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:47:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:08,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 13:47:08,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:47:08,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:47:08,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:47:08,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:08,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015738979] [2022-11-23 13:47:08,750 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:47:08,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266776563] [2022-11-23 13:47:08,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266776563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:47:08,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:47:08,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:47:08,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867160101] [2022-11-23 13:47:08,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:47:08,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:47:08,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:47:08,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:47:08,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:47:08,755 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 13:47:10,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:47:10,112 INFO L93 Difference]: Finished difference Result 346 states and 418 transitions. [2022-11-23 13:47:10,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:47:10,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-11-23 13:47:10,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:47:10,119 INFO L225 Difference]: With dead ends: 346 [2022-11-23 13:47:10,120 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 13:47:10,121 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 13:47:10,122 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:47:10,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 419 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 13:47:10,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 13:47:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-23 13:47:10,150 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 13:47:10,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 219 transitions. [2022-11-23 13:47:10,152 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 219 transitions. Word has length 41 [2022-11-23 13:47:10,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:47:10,152 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 219 transitions. [2022-11-23 13:47:10,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 13:47:10,153 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 219 transitions. [2022-11-23 13:47:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 13:47:10,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:47:10,154 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 13:47:10,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 13:47:10,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:47:10,362 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 13:47:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:47:10,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1460329117, now seen corresponding path program 1 times [2022-11-23 13:47:10,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:47:10,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021472324] [2022-11-23 13:47:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:10,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:47:10,450 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 13:47:10,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [85589848] [2022-11-23 13:47:10,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:47:10,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:47:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:47:10,458 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:47:10,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3a267a4-a48e-424c-93d7-3c32b4454196/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 13:47:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:47:40,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 13:47:40,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:47:40,990 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:47:40,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:47:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:47:41,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:47:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021472324] [2022-11-23 13:47:41,126 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 13:47:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85589848] [2022-11-23 13:47:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85589848] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:47:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1798344688] [2022-11-23 13:47:41,159 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-23 13:47:41,160 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:47:41,165 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:47:41,171 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:47:41,172 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 13:47:41,231 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 13:47:41,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 13:47:41,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,264 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 13:47:41,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-23 13:47:41,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,294 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 13:47:41,294 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 13:47:41,306 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 13:47:41,337 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 13:47:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,382 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 13:47:41,382 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 13:47:41,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-11-23 13:47:41,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 13:47:41,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 13:47:41,500 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 13:47:41,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 13:47:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:41,524 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 13:47:42,010 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 13:47:42,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,071 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 13:47:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,130 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 13:47:42,180 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 13:47:42,231 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 13:47:42,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,306 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 13:47:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,368 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 13:47:42,408 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 13:47:42,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 13:47:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,591 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 13:47:42,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-23 13:47:42,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-23 13:47:42,650 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 13:47:42,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:42,698 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 13:47:42,894 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 13 treesize of output 9 [2022-11-23 13:47:42,900 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 13:47:42,908 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 13:47:42,983 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 13:47:42,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-23 13:47:43,017 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 13:47:43,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-23 13:47:43,044 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 13:47:43,044 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-23 13:47:43,095 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 13:47:43,102 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 13:47:43,109 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 13:47:43,188 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 13:47:43,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,246 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 13:47:43,272 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 13:47:43,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:47:43,551 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 13:47:43,578 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 13:47:43,604 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 13:47:45,665 INFO L217 Elim1Store]: Index analysis took 1739 ms [2022-11-23 13:47:49,483 INFO L321 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2022-11-23 13:47:49,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-23 13:47:52,663 INFO L217 Elim1Store]: Index analysis took 2983 ms [2022-11-23 13:47:57,358 INFO L321 Elim1Store]: treesize reduction 206, result has 11.2 percent of original size [2022-11-23 13:47:57,359 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 9519780 [2022-11-23 13:48:04,777 WARN L233 SmtUtils]: Spent 7.03s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 13:48:04,778 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 13:48:04,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-23 13:48:22,330 WARN L233 SmtUtils]: Spent 17.42s 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 13:48:22,331 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 13:48:22,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1829 [2022-11-23 13:48:23,083 INFO L217 Elim1Store]: Index analysis took 538 ms [2022-11-23 13:48:38,817 WARN L233 SmtUtils]: Spent 15.21s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 13:48:38,818 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 13:48:38,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-23 13:48:40,365 INFO L217 Elim1Store]: Index analysis took 191 ms [2022-11-23 13:48:40,737 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 13:48:40,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-23 13:48:40,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-23 13:48:41,546 INFO L217 Elim1Store]: Index analysis took 404 ms [2022-11-23 13:48:42,645 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 13:48:42,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-23 13:48:44,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:48:44,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2022-11-23 13:48:44,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:44,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:48:44,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-23 13:48:44,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:44,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-23 13:48:44,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:44,675 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 13:48:44,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-23 13:48:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:44,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-23 13:48:49,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:49,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-23 13:48:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 13:48:49,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-23 13:49:14,041 INFO L217 Elim1Store]: Index analysis took 1670 ms [2022-11-23 14:01:36,435 WARN L233 SmtUtils]: Spent 12.37m on a formula simplification. DAG size of input: 525 DAG size of output: 124 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:01:36,437 INFO L321 Elim1Store]: treesize reduction 241907, result has 1.8 percent of original size [2022-11-23 14:01:36,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 13 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 18 new quantified variables, introduced 95 case distinctions, treesize of input 2113482 treesize of output 1659256