./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7 --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 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:36:39,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:36:39,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:36:39,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:36:39,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:36:39,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:36:39,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:36:39,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:36:39,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:36:39,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:36:39,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:36:39,797 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:36:39,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:36:39,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:36:39,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:36:39,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:36:39,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:36:39,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:36:39,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:36:39,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:36:39,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:36:39,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:36:39,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:36:39,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:36:39,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:36:39,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:36:39,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:36:39,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:36:39,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:36:39,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:36:39,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:36:39,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:36:39,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:36:39,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:36:39,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:36:39,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:36:39,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:36:39,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:36:39,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:36:39,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:36:39,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:36:39,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 20:36:39,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:36:39,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:36:39,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:36:39,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:36:39,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:36:39,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:36:39,915 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:36:39,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:36:39,916 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:36:39,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:36:39,917 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:36:39,918 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:36:39,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:36:39,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:36:39,919 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:36:39,919 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:36:39,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:36:39,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:36:39,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:36:39,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:36:39,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:36:39,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:36:39,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:36:39,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:36:39,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:36:39,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:36:39,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:36:39,923 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 20:36:39,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:36:39,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:36:39,924 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:36:39,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:36:39,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:36:39,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:36:39,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:39,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:36:39,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:36:39,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:36:39,926 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:36:39,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:36:39,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:36:39,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:36:39,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:36:39,929 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_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a34048511216dfe9a14f70dd929fd2de5a6eaf4560cb9e9e466dd0467a1d6d7 [2021-11-25 20:36:40,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:36:40,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:36:40,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:36:40,251 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:36:40,252 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:36:40,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2021-11-25 20:36:40,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/data/d554771bf/5a09bb58f2b74a78acd49d6be053d04d/FLAGd9da68fb7 [2021-11-25 20:36:41,014 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:36:41,015 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i [2021-11-25 20:36:41,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/data/d554771bf/5a09bb58f2b74a78acd49d6be053d04d/FLAGd9da68fb7 [2021-11-25 20:36:41,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/data/d554771bf/5a09bb58f2b74a78acd49d6be053d04d [2021-11-25 20:36:41,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:36:41,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:36:41,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:41,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:36:41,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:36:41,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:41" (1/1) ... [2021-11-25 20:36:41,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45765b15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:41, skipping insertion in model container [2021-11-25 20:36:41,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:41" (1/1) ... [2021-11-25 20:36:41,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:36:41,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:36:41,834 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_1390a4cb-9cf7-406c-904e-41bdfde13b67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2021-11-25 20:36:41,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:42,009 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:36:42,052 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_1390a4cb-9cf7-406c-904e-41bdfde13b67/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-1.i[33021,33034] [2021-11-25 20:36:42,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:42,150 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:36:42,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42 WrapperNode [2021-11-25 20:36:42,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:42,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:42,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:36:42,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:36:42,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,294 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 627 [2021-11-25 20:36:42,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:42,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:36:42,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:36:42,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:36:42,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:36:42,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:36:42,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:36:42,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:36:42,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (1/1) ... [2021-11-25 20:36:42,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:42,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:42,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:36:42,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:36:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:36:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:36:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:36:42,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:36:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:36:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:36:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:36:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:36:42,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:36:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:36:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:36:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:36:42,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:36:42,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:36:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:36:42,867 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:36:42,869 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:36:44,005 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:36:44,317 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:36:44,318 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-25 20:36:44,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:44 BoogieIcfgContainer [2021-11-25 20:36:44,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:36:44,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:36:44,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:36:44,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:36:44,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:36:41" (1/3) ... [2021-11-25 20:36:44,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8d68be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:44, skipping insertion in model container [2021-11-25 20:36:44,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:42" (2/3) ... [2021-11-25 20:36:44,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8d68be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:44, skipping insertion in model container [2021-11-25 20:36:44,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:44" (3/3) ... [2021-11-25 20:36:44,329 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-1.i [2021-11-25 20:36:44,334 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:36:44,335 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-25 20:36:44,387 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:36:44,395 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 [2021-11-25 20:36:44,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-25 20:36:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:36:44,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 20:36:44,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:44,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 20:36:44,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:44,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash 538186, now seen corresponding path program 1 times [2021-11-25 20:36:44,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:44,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602052454] [2021-11-25 20:36:44,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:44,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:44,570 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:44,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [503704084] [2021-11-25 20:36:44,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:44,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:44,575 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:44,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:36:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:44,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:36:44,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:44,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:44,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:44,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602052454] [2021-11-25 20:36:44,767 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:44,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503704084] [2021-11-25 20:36:44,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503704084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:44,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:44,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:36:44,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306857018] [2021-11-25 20:36:44,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:44,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:44,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:44,811 INFO L87 Difference]: Start difference. First operand has 89 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 83 states have internal predecessors, (121), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:46,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:46,268 INFO L93 Difference]: Finished difference Result 230 states and 388 transitions. [2021-11-25 20:36:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-25 20:36:46,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:46,296 INFO L225 Difference]: With dead ends: 230 [2021-11-25 20:36:46,296 INFO L226 Difference]: Without dead ends: 141 [2021-11-25 20:36:46,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:46,304 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 54 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:46,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 201 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:36:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-25 20:36:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 89. [2021-11-25 20:36:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.318840579710145) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 20:36:46,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2021-11-25 20:36:46,368 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 3 [2021-11-25 20:36:46,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:46,369 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2021-11-25 20:36:46,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2021-11-25 20:36:46,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:36:46,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:46,374 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] [2021-11-25 20:36:46,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:46,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 20:36:46,583 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:46,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:46,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1093605591, now seen corresponding path program 1 times [2021-11-25 20:36:46,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:46,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845225257] [2021-11-25 20:36:46,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:46,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:46,815 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:46,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1990403446] [2021-11-25 20:36:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:46,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:46,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:46,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:36:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:47,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:36:47,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:47,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:47,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:47,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:47,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845225257] [2021-11-25 20:36:47,676 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:47,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990403446] [2021-11-25 20:36:47,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990403446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:47,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:47,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:47,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423914282] [2021-11-25 20:36:47,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:47,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:47,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:47,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:47,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:47,679 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-25 20:36:49,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:36:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:49,650 INFO L93 Difference]: Finished difference Result 141 states and 177 transitions. [2021-11-25 20:36:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:36:49,656 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-25 20:36:49,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:49,660 INFO L225 Difference]: With dead ends: 141 [2021-11-25 20:36:49,660 INFO L226 Difference]: Without dead ends: 140 [2021-11-25 20:36:49,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:36:49,662 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 32 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:49,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 313 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 20:36:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-25 20:36:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-11-25 20:36:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 129 states have internal predecessors, (142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 20:36:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2021-11-25 20:36:49,687 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 27 [2021-11-25 20:36:49,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:49,688 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2021-11-25 20:36:49,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2021-11-25 20:36:49,688 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2021-11-25 20:36:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:36:49,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:49,690 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] [2021-11-25 20:36:49,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:49,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:49,921 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash -457964632, now seen corresponding path program 1 times [2021-11-25 20:36:49,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:49,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452620230] [2021-11-25 20:36:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:49,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:50,027 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:50,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844797646] [2021-11-25 20:36:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:50,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:50,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:50,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:50,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:36:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:50,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1543 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:36:50,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:50,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:50,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:50,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452620230] [2021-11-25 20:36:50,958 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:50,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844797646] [2021-11-25 20:36:50,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844797646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:50,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:50,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:50,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046393832] [2021-11-25 20:36:50,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:50,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:50,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:50,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:50,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:50,961 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-11-25 20:36:51,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:51,739 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2021-11-25 20:36:51,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:36:51,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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 [2021-11-25 20:36:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:51,747 INFO L225 Difference]: With dead ends: 138 [2021-11-25 20:36:51,748 INFO L226 Difference]: Without dead ends: 137 [2021-11-25 20:36:51,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:36:51,749 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 59 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:51,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 205 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 20:36:51,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-25 20:36:51,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-25 20:36:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 20:36:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2021-11-25 20:36:51,768 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 28 [2021-11-25 20:36:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:51,768 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2021-11-25 20:36:51,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 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) [2021-11-25 20:36:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2021-11-25 20:36:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-25 20:36:51,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:51,770 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:51,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 20:36:51,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:51,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:51,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:51,987 INFO L85 PathProgramCache]: Analyzing trace with hash -2017329836, now seen corresponding path program 1 times [2021-11-25 20:36:51,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:51,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380267610] [2021-11-25 20:36:51,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:51,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:52,150 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:52,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876378974] [2021-11-25 20:36:52,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:52,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:52,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:52,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:52,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:36:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:52,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:36:52,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:53,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:53,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:53,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380267610] [2021-11-25 20:36:53,123 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876378974] [2021-11-25 20:36:53,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876378974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:53,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:53,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:53,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276166012] [2021-11-25 20:36:53,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:53,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:53,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:53,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:53,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:53,137 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-25 20:36:54,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:36:54,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:54,703 INFO L93 Difference]: Finished difference Result 246 states and 314 transitions. [2021-11-25 20:36:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:54,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-25 20:36:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:54,712 INFO L225 Difference]: With dead ends: 246 [2021-11-25 20:36:54,712 INFO L226 Difference]: Without dead ends: 135 [2021-11-25 20:36:54,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:54,715 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 11 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:54,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 190 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:36:54,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-25 20:36:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-25 20:36:54,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 126 states have internal predecessors, (138), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 20:36:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2021-11-25 20:36:54,736 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 30 [2021-11-25 20:36:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:54,737 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2021-11-25 20:36:54,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2021-11-25 20:36:54,737 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2021-11-25 20:36:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 20:36:54,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:54,740 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] [2021-11-25 20:36:54,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:54,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:54,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:54,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:54,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1320081689, now seen corresponding path program 1 times [2021-11-25 20:36:54,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:54,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521718883] [2021-11-25 20:36:54,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:54,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:55,036 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:55,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696564547] [2021-11-25 20:36:55,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:55,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:55,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:55,047 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:55,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:36:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:56,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:36:56,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:56,523 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:36:56,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:56,524 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:56,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521718883] [2021-11-25 20:36:56,524 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:56,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696564547] [2021-11-25 20:36:56,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696564547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:56,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:56,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:36:56,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266308624] [2021-11-25 20:36:56,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:56,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:56,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:56,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:56,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:56,528 INFO L87 Difference]: Start difference. First operand 135 states and 170 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:36:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:57,919 INFO L93 Difference]: Finished difference Result 252 states and 326 transitions. [2021-11-25 20:36:57,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:36:57,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2021-11-25 20:36:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:57,928 INFO L225 Difference]: With dead ends: 252 [2021-11-25 20:36:57,928 INFO L226 Difference]: Without dead ends: 137 [2021-11-25 20:36:57,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:36:57,931 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:57,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 296 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:36:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-25 20:36:57,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-25 20:36:57,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 128 states have internal predecessors, (140), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-25 20:36:57,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 174 transitions. [2021-11-25 20:36:57,950 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 174 transitions. Word has length 43 [2021-11-25 20:36:57,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:57,951 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 174 transitions. [2021-11-25 20:36:57,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:36:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 174 transitions. [2021-11-25 20:36:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-25 20:36:57,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:57,953 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-25 20:36:57,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:58,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:58,163 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:58,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:58,163 INFO L85 PathProgramCache]: Analyzing trace with hash 198198289, now seen corresponding path program 1 times [2021-11-25 20:36:58,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:58,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982682029] [2021-11-25 20:36:58,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:58,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:58,227 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:58,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15745821] [2021-11-25 20:36:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:58,228 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:58,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:58,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:58,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1390a4cb-9cf7-406c-904e-41bdfde13b67/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:36:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:59,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-25 20:36:59,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:59,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:36:59,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:36:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:36:59,468 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:59,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982682029] [2021-11-25 20:36:59,468 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:59,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15745821] [2021-11-25 20:36:59,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15745821] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:36:59,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1101665140] [2021-11-25 20:36:59,490 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:36:59,491 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:36:59,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:36:59,501 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:36:59,501 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:36:59,622 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 [2021-11-25 20:36:59,628 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 [2021-11-25 20:36:59,665 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:36:59,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-25 20:36:59,724 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:36:59,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 20:36:59,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:36:59,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:59,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:36:59,827 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 19 treesize of output 1 [2021-11-25 20:36:59,837 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 19 treesize of output 1 [2021-11-25 20:37:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-25 20:37:00,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,360 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 55 treesize of output 66 [2021-11-25 20:37:00,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:37:00,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:37:00,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:37:00,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:37:00,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 20:37:00,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 20:37:00,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 20:37:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:37:00,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:37:00,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2021-11-25 20:37:00,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:00,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 47 [2021-11-25 20:37:00,918 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 [2021-11-25 20:37:00,922 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 [2021-11-25 20:37:00,930 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 [2021-11-25 20:37:00,985 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:37:00,986 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 55 treesize of output 58 [2021-11-25 20:37:01,026 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:37:01,027 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 53 treesize of output 56 [2021-11-25 20:37:01,064 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:37:01,065 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 47 treesize of output 50 [2021-11-25 20:37:01,121 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 [2021-11-25 20:37:01,129 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 [2021-11-25 20:37:01,135 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 [2021-11-25 20:37:01,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 30 [2021-11-25 20:37:01,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 51 treesize of output 21 [2021-11-25 20:37:01,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:37:01,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 51 treesize of output 21 [2021-11-25 20:37:01,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:37:01,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:01,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 30 [2021-11-25 20:37:08,864 WARN L227 SmtUtils]: Spent 7.27s 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) [2021-11-25 20:37:08,866 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:37:08,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 20:37:08,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:19,616 WARN L227 SmtUtils]: Spent 10.61s 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) [2021-11-25 20:37:19,618 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:37:19,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 20:37:19,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:20,221 INFO L244 Elim1Store]: Index analysis took 367 ms [2021-11-25 20:37:32,991 WARN L227 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:37:32,993 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 20:37:32,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 20:37:33,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:33,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:33,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:33,672 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-11-25 20:37:34,410 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:37:34,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 20:37:34,856 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-11-25 20:37:34,872 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 20:37:34,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 20:37:35,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:35,649 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 20:37:35,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:37:35,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:36,085 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:36,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 20:37:36,193 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:36,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:36,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:36,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 20:37:36,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:36,807 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 20:37:36,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 20:37:37,242 INFO L244 Elim1Store]: Index analysis took 238 ms [2021-11-25 20:37:37,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:39,263 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:39,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 17608 treesize of output 18292 [2021-11-25 20:37:56,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:56,839 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:56,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 20:37:56,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:57,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:57,017 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-25 20:37:57,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 14 [2021-11-25 20:37:57,095 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:57,143 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:57,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:57,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:57,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 28 [2021-11-25 20:37:57,273 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:31,197 INFO L190 IndexEqualityManager]: detected not equals via solver