./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V --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 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:03:18,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:03:18,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:03:18,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:03:18,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:03:18,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:03:18,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:03:18,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:03:18,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:03:18,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:03:18,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:03:18,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:03:18,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:03:18,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:03:18,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:03:18,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:03:18,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:03:18,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:03:18,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:03:18,786 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:03:18,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:03:18,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:03:18,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:03:18,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:03:18,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:03:18,795 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:03:18,795 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:03:18,796 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:03:18,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:03:18,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:03:18,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:03:18,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:03:18,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:03:18,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:03:18,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:03:18,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:03:18,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:03:18,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:03:18,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:03:18,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:03:18,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:03:18,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 03:03:18,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:03:18,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:03:18,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:03:18,830 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:03:18,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:03:18,831 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:03:18,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:03:18,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:03:18,832 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:03:18,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:03:18,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:03:18,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:03:18,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:03:18,833 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:03:18,833 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:03:18,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:03:18,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:03:18,834 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:03:18,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:03:18,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:03:18,835 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:03:18,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:03:18,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:03:18,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:03:18,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:03:18,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:03:18,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:03:18,836 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 03:03:18,837 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:03:18,837 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:03:18,837 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:03:18,837 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:03:18,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:03:18,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:03:18,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:03:18,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:03:18,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:03:18,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:03:18,839 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:03:18,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:03:18,839 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:03:18,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:03:18,840 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:03:18,840 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_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2021-11-23 03:03:19,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:03:19,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:03:19,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:03:19,211 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:03:19,211 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:03:19,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2021-11-23 03:03:19,282 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/data/8c1dbc905/168b33e44c7c40f5ae4fc9f9c27a8b88/FLAG81d999407 [2021-11-23 03:03:19,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:03:19,964 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2021-11-23 03:03:19,981 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/data/8c1dbc905/168b33e44c7c40f5ae4fc9f9c27a8b88/FLAG81d999407 [2021-11-23 03:03:20,173 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/data/8c1dbc905/168b33e44c7c40f5ae4fc9f9c27a8b88 [2021-11-23 03:03:20,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:03:20,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:03:20,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:03:20,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:03:20,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:03:20,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:20" (1/1) ... [2021-11-23 03:03:20,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b60f461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:20, skipping insertion in model container [2021-11-23 03:03:20,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:03:20" (1/1) ... [2021-11-23 03:03:20,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:03:20,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:03:20,660 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_b48dd862-770f-421f-ab44-b0271167833b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2021-11-23 03:03:20,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:03:20,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:03:20,893 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_b48dd862-770f-421f-ab44-b0271167833b/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2021-11-23 03:03:20,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:03:21,003 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:03:21,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21 WrapperNode [2021-11-23 03:03:21,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:03:21,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:03:21,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:03:21,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:03:21,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,111 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-23 03:03:21,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:03:21,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:03:21,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:03:21,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:03:21,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:03:21,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:03:21,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:03:21,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:03:21,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (1/1) ... [2021-11-23 03:03:21,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:03:21,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:21,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:03:21,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:03:21,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:03:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:03:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:03:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:03:21,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:03:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:03:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:03:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:03:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:03:21,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:03:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:03:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:03:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:03:21,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:03:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:03:21,514 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:03:21,515 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:03:22,765 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:03:23,223 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:03:23,223 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-23 03:03:23,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:23 BoogieIcfgContainer [2021-11-23 03:03:23,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:03:23,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:03:23,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:03:23,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:03:23,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:03:20" (1/3) ... [2021-11-23 03:03:23,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba973e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:23, skipping insertion in model container [2021-11-23 03:03:23,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:03:21" (2/3) ... [2021-11-23 03:03:23,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba973e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:03:23, skipping insertion in model container [2021-11-23 03:03:23,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:03:23" (3/3) ... [2021-11-23 03:03:23,247 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2021-11-23 03:03:23,253 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:03:23,253 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 03:03:23,311 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:03:23,326 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 [2021-11-23 03:03:23,327 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 03:03:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 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) [2021-11-23 03:03:23,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 03:03:23,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:23,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 03:03:23,355 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)] === [2021-11-23 03:03:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-23 03:03:23,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:23,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610022531] [2021-11-23 03:03:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:23,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:23,482 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:23,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276559562] [2021-11-23 03:03:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:23,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:23,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:23,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:23,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:03:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:23,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:03:23,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:23,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:23,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:23,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:23,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610022531] [2021-11-23 03:03:23,719 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:23,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276559562] [2021-11-23 03:03:23,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276559562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:23,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:23,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:03:23,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503652765] [2021-11-23 03:03:23,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:23,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:23,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:23,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:23,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:23,756 INFO L87 Difference]: Start difference. First operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 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) 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) [2021-11-23 03:03:25,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:25,048 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-23 03:03:25,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:03:25,057 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 [2021-11-23 03:03:25,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:25,067 INFO L225 Difference]: With dead ends: 368 [2021-11-23 03:03:25,067 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 03:03:25,071 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 [2021-11-23 03:03:25,075 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:25,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 03:03:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 03:03:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-23 03:03:25,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 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) [2021-11-23 03:03:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-23 03:03:25,131 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-23 03:03:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:25,131 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-23 03:03:25,131 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) [2021-11-23 03:03:25,132 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-23 03:03:25,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 03:03:25,135 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:25,135 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:25,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 03:03:25,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:25,351 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)] === [2021-11-23 03:03:25,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:25,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-23 03:03:25,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:25,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974635884] [2021-11-23 03:03:25,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:25,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:25,409 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:25,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1957363181] [2021-11-23 03:03:25,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:25,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:25,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:25,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:25,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:03:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:25,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:03:25,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:25,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:25,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:25,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974635884] [2021-11-23 03:03:25,980 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:25,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957363181] [2021-11-23 03:03:25,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957363181] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:25,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:25,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:03:25,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926323894] [2021-11-23 03:03:25,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:25,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:03:25,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:25,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:03:25,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:03:25,986 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:28,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:03:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:29,854 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-23 03:03:29,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:03:29,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-23 03:03:29,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:29,865 INFO L225 Difference]: With dead ends: 233 [2021-11-23 03:03:29,865 INFO L226 Difference]: Without dead ends: 232 [2021-11-23 03:03:29,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:03:29,867 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:29,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-23 03:03:29,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-23 03:03:29,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-23 03:03:29,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 215 states have internal predecessors, (238), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 03:03:29,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-23 03:03:29,899 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-23 03:03:29,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:29,899 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-23 03:03:29,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:29,900 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-23 03:03:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-23 03:03:29,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:29,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:29,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:03:30,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:30,127 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)] === [2021-11-23 03:03:30,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:30,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-23 03:03:30,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:30,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459352011] [2021-11-23 03:03:30,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:30,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:30,165 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:30,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888608375] [2021-11-23 03:03:30,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:30,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:30,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:30,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:30,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:03:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:30,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:03:30,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:30,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:30,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:30,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459352011] [2021-11-23 03:03:30,539 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:30,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888608375] [2021-11-23 03:03:30,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888608375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:30,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:30,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:03:30,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673090758] [2021-11-23 03:03:30,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:30,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:03:30,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:03:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:03:30,542 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:31,735 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-23 03:03:31,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:03:31,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-23 03:03:31,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:31,743 INFO L225 Difference]: With dead ends: 230 [2021-11-23 03:03:31,743 INFO L226 Difference]: Without dead ends: 229 [2021-11-23 03:03:31,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:03:31,745 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:31,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 03:03:31,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-23 03:03:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-23 03:03:31,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 214 states have internal predecessors, (237), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 03:03:31,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-23 03:03:31,772 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-23 03:03:31,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:31,773 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-23 03:03:31,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:31,773 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-23 03:03:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 03:03:31,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:31,775 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:31,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:03:32,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:32,003 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)] === [2021-11-23 03:03:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-23 03:03:32,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:32,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868829497] [2021-11-23 03:03:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:32,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:32,037 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:32,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1498448070] [2021-11-23 03:03:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:32,037 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:32,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:32,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:32,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:03:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:32,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:03:32,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:32,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:03:32,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:32,572 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:32,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868829497] [2021-11-23 03:03:32,573 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:32,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498448070] [2021-11-23 03:03:32,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498448070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:32,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:32,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:03:32,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631248822] [2021-11-23 03:03:32,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:32,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:32,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:32,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:32,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:32,581 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:35,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:03:35,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:35,815 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-23 03:03:35,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:03:35,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-23 03:03:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:35,837 INFO L225 Difference]: With dead ends: 384 [2021-11-23 03:03:35,837 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 03:03:35,838 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:35,839 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:35,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-23 03:03:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 03:03:35,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 03:03:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 199 states have (on average 1.1758793969849246) internal successors, (234), 212 states have internal predecessors, (234), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 03:03:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-23 03:03:35,861 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-23 03:03:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:35,861 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-23 03:03:35,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:03:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-23 03:03:35,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 03:03:35,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:35,865 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:35,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:03:36,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:36,091 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)] === [2021-11-23 03:03:36,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:36,091 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-23 03:03:36,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:36,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265201114] [2021-11-23 03:03:36,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:36,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:36,113 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:36,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [507534846] [2021-11-23 03:03:36,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:36,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:36,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:36,125 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:36,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:03:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:36,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:03:36,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:03:36,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:36,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:36,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265201114] [2021-11-23 03:03:36,612 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:36,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507534846] [2021-11-23 03:03:36,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507534846] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:36,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:36,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:03:36,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270330785] [2021-11-23 03:03:36,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:36,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:03:36,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:36,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:03:36,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:36,616 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:03:37,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:37,964 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-23 03:03:37,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:03:37,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 03:03:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:37,972 INFO L225 Difference]: With dead ends: 426 [2021-11-23 03:03:37,972 INFO L226 Difference]: Without dead ends: 225 [2021-11-23 03:03:37,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:03:37,975 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:37,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 03:03:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-23 03:03:37,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-23 03:03:37,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-23 03:03:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-23 03:03:37,993 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-23 03:03:37,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:37,993 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-23 03:03:37,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:03:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-23 03:03:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-23 03:03:37,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:37,997 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:38,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:03:38,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:38,211 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)] === [2021-11-23 03:03:38,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:38,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-23 03:03:38,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:38,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903025649] [2021-11-23 03:03:38,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:38,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:38,228 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:38,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [480744894] [2021-11-23 03:03:38,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:38,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:38,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:38,234 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:38,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:03:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:41,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:03:41,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:03:41,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:03:41,301 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:41,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903025649] [2021-11-23 03:03:41,302 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:41,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480744894] [2021-11-23 03:03:41,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480744894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:03:41,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:03:41,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:03:41,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129913379] [2021-11-23 03:03:41,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:03:41,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:03:41,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:03:41,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:03:41,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:03:41,305 INFO L87 Difference]: Start difference. First operand 225 states and 275 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:03:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:03:44,686 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-23 03:03:44,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:03:44,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-23 03:03:44,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:03:44,702 INFO L225 Difference]: With dead ends: 432 [2021-11-23 03:03:44,702 INFO L226 Difference]: Without dead ends: 227 [2021-11-23 03:03:44,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:03:44,703 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:03:44,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 03:03:44,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-23 03:03:44,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-23 03:03:44,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 198 states have (on average 1.1767676767676767) internal successors, (233), 212 states have internal predecessors, (233), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-23 03:03:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-23 03:03:44,723 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-23 03:03:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:03:44,723 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-23 03:03:44,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 03:03:44,724 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-23 03:03:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 03:03:44,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:03:44,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:03:44,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:03:44,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-23 03:03:44,955 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-23 03:03:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:03:44,955 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-23 03:03:44,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:03:44,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410580699] [2021-11-23 03:03:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:44,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:03:44,983 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:03:44,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819442824] [2021-11-23 03:03:44,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:03:44,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:03:44,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:03:44,985 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:03:45,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48dd862-770f-421f-ab44-b0271167833b/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:03:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:03:46,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:03:46,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:03:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 03:03:46,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:03:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 03:03:46,724 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:03:46,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410580699] [2021-11-23 03:03:46,725 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:03:46,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819442824] [2021-11-23 03:03:46,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819442824] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:03:46,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1864124371] [2021-11-23 03:03:46,743 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-23 03:03:46,743 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:03:46,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:03:46,752 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:03:46,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:03:47,104 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:03:47,105 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 [2021-11-23 03:03:47,120 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 [2021-11-23 03:03:47,127 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 [2021-11-23 03:03:47,149 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:03:47,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 32 [2021-11-23 03:03:47,192 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:03:47,193 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 [2021-11-23 03:03:47,236 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 [2021-11-23 03:03:47,245 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 [2021-11-23 03:03:47,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,261 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 [2021-11-23 03:03:47,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,653 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 [2021-11-23 03:03:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,682 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 [2021-11-23 03:03:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,714 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 70 treesize of output 67 [2021-11-23 03:03:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,736 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 [2021-11-23 03:03:47,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,779 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 [2021-11-23 03:03:47,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,799 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 [2021-11-23 03:03:47,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 03:03:47,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,954 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 [2021-11-23 03:03:47,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:47,980 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 100 treesize of output 105 [2021-11-23 03:03:48,068 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 03:03:48,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 03:03:48,117 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:03:48,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 03:03:48,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,151 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 [2021-11-23 03:03:48,252 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 [2021-11-23 03:03:48,256 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 [2021-11-23 03:03:48,261 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 [2021-11-23 03:03:48,309 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 03:03:48,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-23 03:03:48,336 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 03:03:48,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-23 03:03:48,360 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 03:03:48,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-23 03:03:48,403 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 [2021-11-23 03:03:48,408 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 [2021-11-23 03:03:48,413 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 [2021-11-23 03:03:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,490 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 [2021-11-23 03:03:48,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,517 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 [2021-11-23 03:03:48,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,537 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 108 treesize of output 42 [2021-11-23 03:03:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,667 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 [2021-11-23 03:03:48,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,685 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 108 treesize of output 42 [2021-11-23 03:03:48,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:03:48,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 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 [2021-11-23 03:03:53,968 WARN L227 SmtUtils]: Spent 5.15s 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) [2021-11-23 03:03:53,969 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:03:53,970 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 2853 treesize of output 2330 [2021-11-23 03:03:54,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:01,519 WARN L227 SmtUtils]: Spent 7.50s 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) [2021-11-23 03:04:01,520 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:04:01,521 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 2954 treesize of output 2672 [2021-11-23 03:04:10,049 WARN L227 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:04:10,051 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 03:04:10,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2858 treesize of output 2688 [2021-11-23 03:04:11,249 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 03:04:11,249 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 7 case distinctions, treesize of input 25956 treesize of output 25967 [2021-11-23 03:04:12,170 INFO L354 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2021-11-23 03:04:12,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25955 treesize of output 25967 [2021-11-23 03:04:12,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:12,968 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 03:04:12,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 03:04:13,019 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:13,129 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:13,157 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:13,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:04:13,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-23 03:04:13,651 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:13,688 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:13,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:13,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 03:04:13,854 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:14,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:14,064 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 03:04:14,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 03:04:14,105 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:14,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:14,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 03:04:14,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:14,519 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:14,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:14,858 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 03:04:14,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 03:04:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:15,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:15,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:15,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 47 [2021-11-23 03:04:15,263 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:16,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,289 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 3577 treesize of output 3127 [2021-11-23 03:04:16,450 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,567 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-23 03:04:16,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 03:04:16,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:16,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:16,842 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-23 03:04:16,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 03:04:17,309 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:17,344 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:17,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:17,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:17,478 INFO L244 Elim1Store]: Index analysis took 170 ms [2021-11-23 03:04:17,644 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:04:17,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3577 treesize of output 3197 [2021-11-23 03:04:18,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:18,213 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:18,331 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:18,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,491 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-11-23 03:04:18,601 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:04:18,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3689 treesize of output 3279 [2021-11-23 03:04:18,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:18,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:18,943 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-11-23 03:04:18,964 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:04:18,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 03:04:19,667 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,755 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:19,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:19,893 INFO L244 Elim1Store]: Index analysis took 225 ms [2021-11-23 03:04:19,895 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 3577 treesize of output 3127 [2021-11-23 03:04:20,082 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:20,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:20,339 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:20,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,367 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:20,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,592 INFO L244 Elim1Store]: Index analysis took 253 ms [2021-11-23 03:04:20,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3689 treesize of output 3227 [2021-11-23 03:04:20,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:04:20,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:20,872 INFO L244 Elim1Store]: Index analysis took 115 ms [2021-11-23 03:04:20,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3589 treesize of output 3133 [2021-11-23 03:04:21,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:21,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:21,844 INFO L244 Elim1Store]: Index analysis took 230 ms [2021-11-23 03:04:24,538 INFO L354 Elim1Store]: treesize reduction 480, result has 74.4 percent of original size [2021-11-23 03:04:24,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3698 treesize of output 4622 [2021-11-23 03:04:25,232 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:04:25,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:25,776 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-23 03:04:27,828 INFO L354 Elim1Store]: treesize reduction 470, result has 74.2 percent of original size [2021-11-23 03:04:27,828 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 8 case distinctions, treesize of input 3598 treesize of output 4488 [2021-11-23 03:04:29,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:29,041 INFO L244 Elim1Store]: Index analysis took 194 ms [2021-11-23 03:04:29,388 INFO L354 Elim1Store]: treesize reduction 1848, result has 0.1 percent of original size [2021-11-23 03:04:29,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3586 treesize of output 3130 [2021-11-23 03:04:31,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:31,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:31,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:31,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:04:31,668 INFO L244 Elim1Store]: Index analysis took 237 ms [2021-11-23 03:04:37,291 WARN L227 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:04:37,292 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-23 03:04:37,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 95710 treesize of output 96552 [2021-11-23 03:08:34,022 WARN L227 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 2560 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 03:13:54,240 WARN L227 SmtUtils]: Spent 6.71s on a formula simplification that was a NOOP. DAG size: 2914 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 03:14:07,599 WARN L227 SmtUtils]: Spent 6.94s on a formula simplification that was a NOOP. DAG size: 2912 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)