./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:50:47,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:50:47,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:50:47,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:50:47,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:50:47,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:50:47,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:50:47,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:50:47,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:50:47,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:50:47,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:50:47,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:50:47,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:50:47,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:50:47,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:50:47,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:50:47,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:50:47,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:50:47,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:50:47,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:50:47,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:50:47,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:50:47,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:50:47,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:50:47,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:50:47,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:50:47,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:50:47,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:50:47,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:50:47,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:50:47,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:50:47,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:50:47,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:50:47,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:50:47,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:50:47,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:50:47,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:50:47,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:50:47,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:50:47,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:50:47,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:50:47,253 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 22:50:47,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:50:47,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:50:47,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:50:47,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:50:47,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:50:47,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:50:47,326 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:50:47,326 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:50:47,327 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:50:47,327 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:50:47,328 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:50:47,329 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:50:47,329 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:50:47,329 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:50:47,330 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:50:47,330 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:50:47,330 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:50:47,331 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:50:47,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:50:47,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 22:50:47,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 22:50:47,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:50:47,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 22:50:47,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:50:47,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:50:47,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:50:47,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:50:47,335 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 22:50:47,335 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 22:50:47,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:50:47,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:50:47,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:50:47,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:50:47,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:50:47,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:50:47,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:50:47,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:50:47,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:50:47,338 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:50:47,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:50:47,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:50:47,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:50:47,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:50:47,341 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2021-11-20 22:50:47,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:50:47,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:50:47,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:50:47,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:50:47,780 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:50:47,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-20 22:50:47,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/data/a1fac1e52/16a3e98e2b414339a489041564b25717/FLAGdbb1f68c8 [2021-11-20 22:50:48,633 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:50:48,634 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2021-11-20 22:50:48,662 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/data/a1fac1e52/16a3e98e2b414339a489041564b25717/FLAGdbb1f68c8 [2021-11-20 22:50:48,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/data/a1fac1e52/16a3e98e2b414339a489041564b25717 [2021-11-20 22:50:48,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:50:48,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:50:48,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:50:48,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:50:48,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:50:48,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:48" (1/1) ... [2021-11-20 22:50:48,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@334e96dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:48, skipping insertion in model container [2021-11-20 22:50:48,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:50:48" (1/1) ... [2021-11-20 22:50:48,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:50:48,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:50:49,605 WARN L230 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_7257ea22-c4e2-4078-91aa-12eecff4d5f0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-20 22:50:49,852 WARN L230 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_7257ea22-c4e2-4078-91aa-12eecff4d5f0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-20 22:50:49,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:50:49,874 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:50:49,912 WARN L230 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_7257ea22-c4e2-4078-91aa-12eecff4d5f0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[33021,33034] [2021-11-20 22:50:49,970 WARN L230 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_7257ea22-c4e2-4078-91aa-12eecff4d5f0/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i[49681,49694] [2021-11-20 22:50:49,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:50:50,023 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:50:50,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50 WrapperNode [2021-11-20 22:50:50,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:50:50,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:50:50,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:50:50,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:50:50,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,207 INFO L137 Inliner]: procedures = 177, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1412 [2021-11-20 22:50:50,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:50:50,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:50:50,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:50:50,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:50:50,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:50:50,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:50:50,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:50:50,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:50:50,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (1/1) ... [2021-11-20 22:50:50,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:50:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:50,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:50:50,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:50:50,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:50:50,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 22:50:50,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 22:50:50,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:50:50,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:50:50,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:50:50,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:50:50,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:50:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:50:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:50:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 22:50:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:50:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:50:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:50:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:50:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:50:50,654 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:50:50,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:50:52,040 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:50:52,511 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:50:52,512 INFO L301 CfgBuilder]: Removed 83 assume(true) statements. [2021-11-20 22:50:52,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:52 BoogieIcfgContainer [2021-11-20 22:50:52,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:50:52,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:50:52,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:50:52,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:50:52,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:50:48" (1/3) ... [2021-11-20 22:50:52,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fad0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:52, skipping insertion in model container [2021-11-20 22:50:52,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:50:50" (2/3) ... [2021-11-20 22:50:52,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fad0c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:50:52, skipping insertion in model container [2021-11-20 22:50:52,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:50:52" (3/3) ... [2021-11-20 22:50:52,523 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2021-11-20 22:50:52,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:50:52,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-20 22:50:52,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:50:52,582 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 22:50:52,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-20 22:50:52,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 140 states have (on average 1.8357142857142856) internal successors, (257), 155 states have internal predecessors, (257), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2021-11-20 22:50:52,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 22:50:52,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:52,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 22:50:52,608 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:50:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1119808, now seen corresponding path program 1 times [2021-11-20 22:50:52,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:52,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043619372] [2021-11-20 22:50:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:52,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:52,732 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:50:52,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2008837853] [2021-11-20 22:50:52,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:52,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:52,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:52,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:50:52,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 22:50:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:52,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:50:52,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:50:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:53,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:50:53,010 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:53,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043619372] [2021-11-20 22:50:53,011 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:50:53,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008837853] [2021-11-20 22:50:53,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008837853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:53,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:53,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-20 22:50:53,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737882257] [2021-11-20 22:50:53,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:53,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:53,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:53,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:53,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:53,060 INFO L87 Difference]: Start difference. First operand has 164 states, 140 states have (on average 1.8357142857142856) internal successors, (257), 155 states have internal predecessors, (257), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-20 22:50:55,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:55,388 INFO L93 Difference]: Finished difference Result 476 states and 831 transitions. [2021-11-20 22:50:55,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:55,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-20 22:50:55,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:55,428 INFO L225 Difference]: With dead ends: 476 [2021-11-20 22:50:55,428 INFO L226 Difference]: Without dead ends: 312 [2021-11-20 22:50:55,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:55,438 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 159 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:55,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 351 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 22:50:55,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-20 22:50:55,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 212. [2021-11-20 22:50:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 203 states have internal predecessors, (232), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 22:50:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 264 transitions. [2021-11-20 22:50:55,532 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 264 transitions. Word has length 3 [2021-11-20 22:50:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:55,533 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 264 transitions. [2021-11-20 22:50:55,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-20 22:50:55,534 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 264 transitions. [2021-11-20 22:50:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-20 22:50:55,538 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:55,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:55,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 22:50:55,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:55,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:50:55,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1087819107, now seen corresponding path program 1 times [2021-11-20 22:50:55,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:55,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392420432] [2021-11-20 22:50:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:55,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:55,808 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:50:55,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441070714] [2021-11-20 22:50:55,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:55,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:50:55,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:50:55,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:50:55,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 22:50:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:56,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:50:56,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:50:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:50:56,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:50:56,301 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392420432] [2021-11-20 22:50:56,302 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:50:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441070714] [2021-11-20 22:50:56,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441070714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:56,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:56,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 22:50:56,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748995415] [2021-11-20 22:50:56,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:56,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:50:56,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:56,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:50:56,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:50:56,307 INFO L87 Difference]: Start difference. First operand 212 states and 264 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-20 22:51:00,568 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:01,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 22:51:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:01,622 INFO L93 Difference]: Finished difference Result 312 states and 378 transitions. [2021-11-20 22:51:01,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:51:01,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-20 22:51:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:01,642 INFO L225 Difference]: With dead ends: 312 [2021-11-20 22:51:01,643 INFO L226 Difference]: Without dead ends: 311 [2021-11-20 22:51:01,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:01,646 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 116 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:01,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 534 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-20 22:51:01,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-20 22:51:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 307. [2021-11-20 22:51:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 275 states have (on average 1.2036363636363636) internal successors, (331), 292 states have internal predecessors, (331), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-20 22:51:01,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 375 transitions. [2021-11-20 22:51:01,674 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 375 transitions. Word has length 48 [2021-11-20 22:51:01,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:01,675 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 375 transitions. [2021-11-20 22:51:01,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2021-11-20 22:51:01,676 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 375 transitions. [2021-11-20 22:51:01,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 22:51:01,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:01,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:01,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:01,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-20 22:51:01,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:51:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash -637345286, now seen corresponding path program 1 times [2021-11-20 22:51:01,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:01,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915085255] [2021-11-20 22:51:01,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:01,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:01,937 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:51:01,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941867783] [2021-11-20 22:51:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:01,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:01,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:01,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:01,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 22:51:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:02,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 22:51:02,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:02,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:51:02,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:51:02,331 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:02,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915085255] [2021-11-20 22:51:02,332 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:51:02,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941867783] [2021-11-20 22:51:02,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941867783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:02,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:02,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 22:51:02,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094893876] [2021-11-20 22:51:02,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:02,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:51:02,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:51:02,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:51:02,338 INFO L87 Difference]: Start difference. First operand 307 states and 375 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-20 22:51:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:04,132 INFO L93 Difference]: Finished difference Result 307 states and 375 transitions. [2021-11-20 22:51:04,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:51:04,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-20 22:51:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:04,144 INFO L225 Difference]: With dead ends: 307 [2021-11-20 22:51:04,144 INFO L226 Difference]: Without dead ends: 305 [2021-11-20 22:51:04,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:04,146 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 118 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:04,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 327 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 22:51:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-20 22:51:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 304. [2021-11-20 22:51:04,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 274 states have (on average 1.197080291970803) internal successors, (328), 289 states have internal predecessors, (328), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-20 22:51:04,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 372 transitions. [2021-11-20 22:51:04,173 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 372 transitions. Word has length 49 [2021-11-20 22:51:04,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:04,174 INFO L470 AbstractCegarLoop]: Abstraction has 304 states and 372 transitions. [2021-11-20 22:51:04,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-11-20 22:51:04,174 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 372 transitions. [2021-11-20 22:51:04,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 22:51:04,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:04,177 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:04,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:04,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:04,402 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:51:04,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:04,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1691543126, now seen corresponding path program 1 times [2021-11-20 22:51:04,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:04,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710403959] [2021-11-20 22:51:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:04,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:04,433 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:51:04,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803323508] [2021-11-20 22:51:04,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:04,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:04,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:04,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:04,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 22:51:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:04,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 22:51:04,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 22:51:04,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:51:04,972 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:04,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710403959] [2021-11-20 22:51:04,973 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:51:04,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803323508] [2021-11-20 22:51:04,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803323508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:04,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:04,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 22:51:04,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111633024] [2021-11-20 22:51:04,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:04,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:04,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:04,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:04,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:04,980 INFO L87 Difference]: Start difference. First operand 304 states and 372 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-20 22:51:06,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:06,925 INFO L93 Difference]: Finished difference Result 589 states and 737 transitions. [2021-11-20 22:51:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-11-20 22:51:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:06,937 INFO L225 Difference]: With dead ends: 589 [2021-11-20 22:51:06,937 INFO L226 Difference]: Without dead ends: 357 [2021-11-20 22:51:06,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:06,940 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 76 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:06,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 346 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 22:51:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-11-20 22:51:06,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 353. [2021-11-20 22:51:06,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 313 states have (on average 1.2236421725239617) internal successors, (383), 338 states have internal predecessors, (383), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-20 22:51:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 447 transitions. [2021-11-20 22:51:06,968 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 447 transitions. Word has length 51 [2021-11-20 22:51:06,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:06,969 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 447 transitions. [2021-11-20 22:51:06,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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) [2021-11-20 22:51:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 447 transitions. [2021-11-20 22:51:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 22:51:06,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:06,973 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:07,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:07,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:07,186 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:51:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1425254209, now seen corresponding path program 1 times [2021-11-20 22:51:07,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:07,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415759509] [2021-11-20 22:51:07,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:07,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:07,205 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:51:07,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [822195778] [2021-11-20 22:51:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:07,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:07,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:07,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 22:51:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:07,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 22:51:07,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 22:51:07,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:51:07,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:07,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415759509] [2021-11-20 22:51:07,681 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:51:07,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822195778] [2021-11-20 22:51:07,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822195778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:07,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:07,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 22:51:07,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493465944] [2021-11-20 22:51:07,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:07,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:07,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:07,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:07,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:07,684 INFO L87 Difference]: Start difference. First operand 353 states and 447 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 22:51:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:08,827 INFO L93 Difference]: Finished difference Result 678 states and 862 transitions. [2021-11-20 22:51:08,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:51:08,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-20 22:51:08,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:08,834 INFO L225 Difference]: With dead ends: 678 [2021-11-20 22:51:08,834 INFO L226 Difference]: Without dead ends: 351 [2021-11-20 22:51:08,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:08,841 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 11 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:08,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 328 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-20 22:51:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-20 22:51:08,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-20 22:51:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 311 states have (on average 1.2218649517684887) internal successors, (380), 336 states have internal predecessors, (380), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-20 22:51:08,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 444 transitions. [2021-11-20 22:51:08,868 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 444 transitions. Word has length 64 [2021-11-20 22:51:08,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:08,868 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 444 transitions. [2021-11-20 22:51:08,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 22:51:08,869 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 444 transitions. [2021-11-20 22:51:08,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 22:51:08,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:08,872 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:08,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:09,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:09,094 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:51:09,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:09,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1252483932, now seen corresponding path program 1 times [2021-11-20 22:51:09,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:09,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3105333] [2021-11-20 22:51:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:09,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:09,118 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:51:09,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301908259] [2021-11-20 22:51:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:09,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:09,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:09,120 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:09,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 22:51:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:10,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-20 22:51:10,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 22:51:10,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 22:51:10,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3105333] [2021-11-20 22:51:10,851 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:51:10,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301908259] [2021-11-20 22:51:10,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301908259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:10,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:10,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:51:10,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551355313] [2021-11-20 22:51:10,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:10,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:51:10,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:10,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:51:10,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:51:10,853 INFO L87 Difference]: Start difference. First operand 351 states and 444 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 22:51:13,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:51:13,343 INFO L93 Difference]: Finished difference Result 684 states and 880 transitions. [2021-11-20 22:51:13,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:51:13,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-20 22:51:13,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:13,354 INFO L225 Difference]: With dead ends: 684 [2021-11-20 22:51:13,354 INFO L226 Difference]: Without dead ends: 353 [2021-11-20 22:51:13,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:51:13,356 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 1 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:13,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 497 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 22:51:13,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-20 22:51:13,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-20 22:51:13,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 312 states have (on average 1.2243589743589745) internal successors, (382), 338 states have internal predecessors, (382), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2021-11-20 22:51:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 450 transitions. [2021-11-20 22:51:13,381 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 450 transitions. Word has length 77 [2021-11-20 22:51:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:51:13,382 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 450 transitions. [2021-11-20 22:51:13,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 22:51:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 450 transitions. [2021-11-20 22:51:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 22:51:13,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:51:13,384 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:51:13,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 22:51:13,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 22:51:13,598 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-20 22:51:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:51:13,599 INFO L85 PathProgramCache]: Analyzing trace with hash -754730984, now seen corresponding path program 1 times [2021-11-20 22:51:13,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:51:13,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56157600] [2021-11-20 22:51:13,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:13,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:13,619 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 22:51:13,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193677308] [2021-11-20 22:51:13,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:51:13,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 22:51:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:51:13,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 22:51:13,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7257ea22-c4e2-4078-91aa-12eecff4d5f0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 22:51:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:14,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 22:51:14,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 22:51:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-20 22:51:15,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 22:51:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-20 22:51:15,388 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56157600] [2021-11-20 22:51:15,389 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 22:51:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193677308] [2021-11-20 22:51:15,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193677308] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 22:51:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1992795522] [2021-11-20 22:51:15,411 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-20 22:51:15,411 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 22:51:15,416 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 22:51:15,421 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 22:51:15,422 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 22:51:15,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,609 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 22:51:15,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-20 22:51:15,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:15,755 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 22:51:15,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2021-11-20 22:51:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,825 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 22:51:15,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 22:51:15,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:15,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:15,925 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 22:51:15,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:16,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-20 22:51:16,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 1 [2021-11-20 22:51:16,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:16,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:16,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-20 22:51:17,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 22:51:17,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 22:51:17,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-20 22:51:17,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 29 treesize of output 19 [2021-11-20 22:51:17,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:17,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 22:51:18,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 22:51:18,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-20 22:51:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 22:51:18,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-20 22:51:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,368 INFO L354 Elim1Store]: treesize reduction 202, result has 21.7 percent of original size [2021-11-20 22:51:18,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 127 treesize of output 163 [2021-11-20 22:51:18,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,438 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-20 22:51:18,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 145 treesize of output 156 [2021-11-20 22:51:18,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 22:51:18,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:18,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 22:51:19,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,234 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 22:51:19,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 98 treesize of output 97 [2021-11-20 22:51:19,254 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-20 22:51:19,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 94 treesize of output 93 [2021-11-20 22:51:19,276 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-20 22:51:19,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 90 treesize of output 89 [2021-11-20 22:51:19,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-20 22:51:19,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-20 22:51:19,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 22:51:19,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 22:51:19,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 22:51:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:19,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-20 22:51:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:20,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-20 22:51:28,321 WARN L227 SmtUtils]: Spent 8.11s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 22:51:28,321 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 22:51:28,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-20 22:51:28,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:39,585 WARN L227 SmtUtils]: Spent 11.23s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 22:51:39,586 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 22:51:39,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-20 22:51:49,070 WARN L227 SmtUtils]: Spent 9.37s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 22:51:49,071 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-20 22:51:49,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-20 22:51:49,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:49,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:50,337 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-20 22:51:50,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25954 treesize of output 25968 [2021-11-20 22:51:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:50,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:50,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:51,473 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-20 22:51:51,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25953 treesize of output 25968 [2021-11-20 22:51:53,265 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 22:51:53,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:53,602 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 22:51:53,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-20 22:51:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:51:54,288 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:51:54,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-20 22:51:56,471 INFO L244 Elim1Store]: Index analysis took 243 ms [2021-11-20 22:51:58,144 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:51:58,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9007 treesize of output 10411 [2021-11-20 22:52:12,205 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 22:52:12,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:12,655 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 22:52:12,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 21 treesize of output 11 [2021-11-20 22:52:13,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:13,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:13,362 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-20 22:52:13,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 14 [2021-11-20 22:52:14,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:14,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:14,475 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 22:52:14,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 46 treesize of output 28 [2021-11-20 22:52:16,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:17,332 INFO L354 Elim1Store]: treesize reduction 24, result has 44.2 percent of original size [2021-11-20 22:52:17,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 7964 treesize of output 7843 [2021-11-20 22:52:24,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 22:52:24,039 INFO L190 IndexEqualityManager]: detected not equals via solver