./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.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_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/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_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/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_eda77269-663e-4179-8664-cffc9851daa8/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 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:14:16,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:14:16,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:14:16,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:14:16,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:14:16,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:14:16,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:14:16,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:14:16,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:14:16,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:14:16,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:14:16,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:14:16,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:14:16,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:14:16,125 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:14:16,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:14:16,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:14:16,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:14:16,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:14:16,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:14:16,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:14:16,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:14:16,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:14:16,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:14:16,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:14:16,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:14:16,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:14:16,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:14:16,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:14:16,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:14:16,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:14:16,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:14:16,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:14:16,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:14:16,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:14:16,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:14:16,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:14:16,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:14:16,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:14:16,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:14:16,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:14:16,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:14:16,222 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:14:16,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:14:16,223 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:14:16,223 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:14:16,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:14:16,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:14:16,224 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:14:16,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:14:16,225 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:14:16,225 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:14:16,226 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:14:16,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:14:16,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:14:16,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:14:16,227 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:14:16,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:14:16,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:14:16,227 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:14:16,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:14:16,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:14:16,229 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:14:16,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:14:16,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:14:16,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:14:16,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:14:16,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:14:16,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:14:16,230 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:14:16,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:14:16,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:14:16,231 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:14:16,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:14:16,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:14:16,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:14:16,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:14:16,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:14:16,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:14:16,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:14:16,233 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:14:16,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:14:16,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:14:16,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:14:16,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:14:16,234 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_eda77269-663e-4179-8664-cffc9851daa8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2021-11-21 00:14:16,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:14:16,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:14:16,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:14:16,542 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:14:16,543 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:14:16,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-21 00:14:16,617 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/data/5d5478963/38a0d3df082843bdb32ff34dc8767a09/FLAG020ce48ff [2021-11-21 00:14:17,224 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:14:17,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-21 00:14:17,252 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/data/5d5478963/38a0d3df082843bdb32ff34dc8767a09/FLAG020ce48ff [2021-11-21 00:14:17,487 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/data/5d5478963/38a0d3df082843bdb32ff34dc8767a09 [2021-11-21 00:14:17,489 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:14:17,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:14:17,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:14:17,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:14:17,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:14:17,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:14:17" (1/1) ... [2021-11-21 00:14:17,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148f43ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:17, skipping insertion in model container [2021-11-21 00:14:17,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:14:17" (1/1) ... [2021-11-21 00:14:17,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:14:17,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:14:18,035 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_eda77269-663e-4179-8664-cffc9851daa8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-21 00:14:18,192 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_eda77269-663e-4179-8664-cffc9851daa8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-21 00:14:18,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:14:18,223 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:14:18,252 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_eda77269-663e-4179-8664-cffc9851daa8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-21 00:14:18,312 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_eda77269-663e-4179-8664-cffc9851daa8/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-21 00:14:18,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:14:18,371 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:14:18,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18 WrapperNode [2021-11-21 00:14:18,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:14:18,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:14:18,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:14:18,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:14:18,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,534 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1189 [2021-11-21 00:14:18,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:14:18,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:14:18,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:14:18,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:14:18,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:14:18,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:14:18,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:14:18,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:14:18,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (1/1) ... [2021-11-21 00:14:18,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:14:18,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:18,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:14:18,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:14:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:14:18,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:14:18,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:14:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:14:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:14:18,777 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:14:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:14:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:14:18,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:14:18,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:14:18,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:14:19,131 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:14:19,133 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:14:20,332 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:14:20,804 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:14:20,805 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 00:14:20,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:14:20 BoogieIcfgContainer [2021-11-21 00:14:20,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:14:20,814 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:14:20,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:14:20,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:14:20,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:14:17" (1/3) ... [2021-11-21 00:14:20,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbd3cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:14:20, skipping insertion in model container [2021-11-21 00:14:20,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:14:18" (2/3) ... [2021-11-21 00:14:20,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbd3cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:14:20, skipping insertion in model container [2021-11-21 00:14:20,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:14:20" (3/3) ... [2021-11-21 00:14:20,826 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2021-11-21 00:14:20,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:14:20,833 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-21 00:14:20,885 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:14:20,892 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 [2021-11-21 00:14:20,893 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-21 00:14:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 00:14:20,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:14:20,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:20,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:14:20,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:14:20,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:20,924 INFO L85 PathProgramCache]: Analyzing trace with hash 30014351, now seen corresponding path program 1 times [2021-11-21 00:14:20,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:20,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47165903] [2021-11-21 00:14:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:20,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:21,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:14:21,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1846680] [2021-11-21 00:14:21,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:21,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:21,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:21,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:21,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:14:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:21,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:14:21,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:21,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:14:21,391 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 11 treesize of output 7 [2021-11-21 00:14:21,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-21 00:14:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:21,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:14:21,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47165903] [2021-11-21 00:14:21,455 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:14:21,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846680] [2021-11-21 00:14:21,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:21,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:21,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:14:21,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778730171] [2021-11-21 00:14:21,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:21,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:14:21,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:21,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:14:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:14:21,497 INFO L87 Difference]: Start difference. First operand has 147 states, 128 states have (on average 1.8125) internal successors, (232), 141 states have internal predecessors, (232), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:23,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:23,191 INFO L93 Difference]: Finished difference Result 365 states and 629 transitions. [2021-11-21 00:14:23,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:14:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 00:14:23,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:23,209 INFO L225 Difference]: With dead ends: 365 [2021-11-21 00:14:23,209 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:14:23,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:14:23,224 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 77 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:23,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 401 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 00:14:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:14:23,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 136. [2021-11-21 00:14:23,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2627118644067796) internal successors, (149), 130 states have internal predecessors, (149), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 00:14:23,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 165 transitions. [2021-11-21 00:14:23,312 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 165 transitions. Word has length 4 [2021-11-21 00:14:23,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:23,313 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 165 transitions. [2021-11-21 00:14:23,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 165 transitions. [2021-11-21 00:14:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:14:23,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:23,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:23,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:23,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:14:23,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:14:23,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:23,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2038898776, now seen corresponding path program 1 times [2021-11-21 00:14:23,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:23,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49788371] [2021-11-21 00:14:23,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:23,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:23,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:23,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:23,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49788371] [2021-11-21 00:14:23,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49788371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:23,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:23,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:14:23,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29193794] [2021-11-21 00:14:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:23,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:14:23,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:23,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:14:23,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:14:23,637 INFO L87 Difference]: Start difference. First operand 136 states and 165 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:25,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:25,316 INFO L93 Difference]: Finished difference Result 266 states and 333 transitions. [2021-11-21 00:14:25,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:14:25,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 00:14:25,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:25,325 INFO L225 Difference]: With dead ends: 266 [2021-11-21 00:14:25,325 INFO L226 Difference]: Without dead ends: 195 [2021-11-21 00:14:25,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:14:25,328 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 68 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:25,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 383 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 00:14:25,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-21 00:14:25,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 136. [2021-11-21 00:14:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.2542372881355932) internal successors, (148), 130 states have internal predecessors, (148), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 00:14:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 164 transitions. [2021-11-21 00:14:25,344 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 164 transitions. Word has length 9 [2021-11-21 00:14:25,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:25,344 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 164 transitions. [2021-11-21 00:14:25,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:25,345 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 164 transitions. [2021-11-21 00:14:25,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:14:25,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:25,346 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] [2021-11-21 00:14:25,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:14:25,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:14:25,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:25,347 INFO L85 PathProgramCache]: Analyzing trace with hash -446847579, now seen corresponding path program 1 times [2021-11-21 00:14:25,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:25,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627019337] [2021-11-21 00:14:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:25,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:25,372 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:14:25,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1432389845] [2021-11-21 00:14:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:25,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:25,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:25,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:25,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:14:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:25,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:14:25,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:25,750 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:14:25,750 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:25,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627019337] [2021-11-21 00:14:25,751 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:14:25,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432389845] [2021-11-21 00:14:25,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432389845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:25,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:25,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:14:25,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883542331] [2021-11-21 00:14:25,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:25,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:14:25,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:25,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:14:25,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:25,754 INFO L87 Difference]: Start difference. First operand 136 states and 164 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:26,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:26,363 INFO L93 Difference]: Finished difference Result 332 states and 405 transitions. [2021-11-21 00:14:26,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:14:26,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 00:14:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:26,370 INFO L225 Difference]: With dead ends: 332 [2021-11-21 00:14:26,371 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:14:26,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:14:26,373 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 64 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:26,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 302 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:14:26,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:14:26,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 181. [2021-11-21 00:14:26,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 163 states have (on average 1.2269938650306749) internal successors, (200), 175 states have internal predecessors, (200), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 00:14:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2021-11-21 00:14:26,393 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 28 [2021-11-21 00:14:26,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:26,393 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2021-11-21 00:14:26,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:14:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2021-11-21 00:14:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:14:26,395 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:26,395 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:14:26,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:14:26,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-21 00:14:26,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:14:26,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:26,619 INFO L85 PathProgramCache]: Analyzing trace with hash 599024343, now seen corresponding path program 1 times [2021-11-21 00:14:26,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:26,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428385462] [2021-11-21 00:14:26,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:26,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:26,658 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:14:26,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231056127] [2021-11-21 00:14:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:26,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:26,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:26,661 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:26,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:14:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:27,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:14:27,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:27,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:14:27,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428385462] [2021-11-21 00:14:27,167 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:14:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231056127] [2021-11-21 00:14:27,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231056127] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:14:27,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:14:27,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:14:27,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671247309] [2021-11-21 00:14:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:14:27,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:14:27,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:14:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:14:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:14:27,170 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:14:28,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:14:28,394 INFO L93 Difference]: Finished difference Result 346 states and 418 transitions. [2021-11-21 00:14:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:14:28,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-21 00:14:28,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:14:28,402 INFO L225 Difference]: With dead ends: 346 [2021-11-21 00:14:28,402 INFO L226 Difference]: Without dead ends: 183 [2021-11-21 00:14:28,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:14:28,404 INFO L933 BasicCegarLoop]: 140 mSDtfsCounter, 1 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:14:28,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 416 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:14:28,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-21 00:14:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-21 00:14:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 164 states have (on average 1.2317073170731707) internal successors, (202), 177 states have internal predecessors, (202), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-21 00:14:28,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 219 transitions. [2021-11-21 00:14:28,420 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 219 transitions. Word has length 41 [2021-11-21 00:14:28,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:14:28,421 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 219 transitions. [2021-11-21 00:14:28,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:14:28,421 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 219 transitions. [2021-11-21 00:14:28,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:14:28,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:14:28,423 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] [2021-11-21 00:14:28,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 00:14:28,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:28,650 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:14:28,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:14:28,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1293090091, now seen corresponding path program 1 times [2021-11-21 00:14:28,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:14:28,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553905356] [2021-11-21 00:14:28,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:28,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:14:28,685 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:14:28,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [520867269] [2021-11-21 00:14:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:14:28,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:14:28,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:14:28,689 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:14:28,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda77269-663e-4179-8664-cffc9851daa8/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:14:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:14:29,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:14:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:14:29,314 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:14:29,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:14:29,545 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:14:29,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:14:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553905356] [2021-11-21 00:14:29,546 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:14:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520867269] [2021-11-21 00:14:29,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520867269] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:14:29,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [917423617] [2021-11-21 00:14:29,566 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:14:29,566 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:14:29,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:14:29,576 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:14:29,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:14:29,649 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 [2021-11-21 00:14:29,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,691 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:14:29,692 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 [2021-11-21 00:14:29,719 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 [2021-11-21 00:14:29,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,732 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 [2021-11-21 00:14:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:14:29,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,904 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 00:14:29,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 00:14:29,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:29,969 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 00:14:29,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:14:30,012 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 [2021-11-21 00:14:30,022 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 [2021-11-21 00:14:30,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,075 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:14:30,076 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 [2021-11-21 00:14:30,311 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 [2021-11-21 00:14:30,337 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 [2021-11-21 00:14:30,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:30,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 71 treesize of output 59 [2021-11-21 00:14:31,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,733 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 [2021-11-21 00:14:31,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 75 [2021-11-21 00:14:31,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 00:14:31,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,854 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 [2021-11-21 00:14:31,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:31,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-21 00:14:32,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 00:14:32,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,118 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 [2021-11-21 00:14:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,190 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 [2021-11-21 00:14:32,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,280 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 [2021-11-21 00:14:32,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,394 INFO L354 Elim1Store]: treesize reduction 202, result has 21.7 percent of original size [2021-11-21 00:14:32,394 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 [2021-11-21 00:14:32,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,452 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 00:14:32,452 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 [2021-11-21 00:14:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 00:14:32,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:32,672 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 [2021-11-21 00:14:33,167 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 11 treesize of output 7 [2021-11-21 00:14:33,173 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 13 treesize of output 9 [2021-11-21 00:14:33,183 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 11 treesize of output 7 [2021-11-21 00:14:33,236 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 00:14:33,236 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 85 treesize of output 88 [2021-11-21 00:14:33,258 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 00:14:33,258 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 88 treesize of output 91 [2021-11-21 00:14:33,301 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 00:14:33,302 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 91 treesize of output 94 [2021-11-21 00:14:33,415 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 [2021-11-21 00:14:33,422 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 [2021-11-21 00:14:33,430 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 [2021-11-21 00:14:33,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:14:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,574 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 [2021-11-21 00:14:33,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,660 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 [2021-11-21 00:14:33,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:33,941 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 [2021-11-21 00:14:34,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:14:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:34,087 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 [2021-11-21 00:14:39,469 WARN L227 SmtUtils]: Spent 5.23s 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) [2021-11-21 00:14:39,470 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:14:39,471 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 [2021-11-21 00:14:39,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:49,978 WARN L227 SmtUtils]: Spent 10.47s 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) [2021-11-21 00:14:49,979 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:14:49,979 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 [2021-11-21 00:14:59,407 WARN L227 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:14:59,408 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 00:14:59,409 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 2852 treesize of output 2682 [2021-11-21 00:14:59,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:14:59,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,341 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 00:15:01,342 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 25950 treesize of output 25981 [2021-11-21 00:15:01,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:01,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:02,036 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 00:15:02,037 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 25960 treesize of output 25974 [2021-11-21 00:15:03,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:15:03,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:03,986 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 00:15:03,987 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 46 treesize of output 30 [2021-11-21 00:15:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:04,625 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 00:15:04,626 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 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-21 00:15:06,446 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-21 00:15:08,215 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:15:08,215 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 11475 treesize of output 12521 [2021-11-21 00:15:24,856 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 00:15:24,857 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 18499 treesize of output 18507 [2021-11-21 00:15:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:26,435 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 00:15:26,435 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 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-21 00:15:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:26,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:27,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:27,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-21 00:15:39,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:15:39,170 INFO L190 IndexEqualityManager]: detected not equals via solver