./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:53:22,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:53:22,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:53:22,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:53:22,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:53:22,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:53:22,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:53:22,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:53:22,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:53:22,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:53:22,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:53:22,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:53:22,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:53:22,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:53:22,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:53:22,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:53:22,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:53:22,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:53:22,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:53:22,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:53:22,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:53:22,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:53:22,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:53:22,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:53:22,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:53:22,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:53:22,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:53:22,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:53:22,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:53:22,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:53:22,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:53:22,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:53:22,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:53:22,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:53:22,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:53:22,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:53:22,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:53:22,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:53:22,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:53:22,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:53:22,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:53:22,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 17:53:22,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:53:22,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:53:22,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:53:22,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:53:22,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:53:22,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:53:22,588 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:53:22,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:53:22,589 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:53:22,589 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:53:22,590 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:53:22,590 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:53:22,590 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:53:22,591 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:53:22,591 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:53:22,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:53:22,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:53:22,591 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:53:22,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:53:22,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:53:22,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 17:53:22,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:53:22,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:53:22,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:53:22,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:53:22,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:53:22,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:53:22,596 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 17:53:22,596 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:53:22,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:53:22,596 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:53:22,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:53:22,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:53:22,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:53:22,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:53:22,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:53:22,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:53:22,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:53:22,598 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:53:22,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:53:22,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:53:22,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:53:22,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:53:22,599 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_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d4416b38cd75f122474354d64a020f92e3751959548582c6308a6e879679f77 [2021-11-25 17:53:22,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:53:22,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:53:22,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:53:22,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:53:22,974 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:53:22,975 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2021-11-25 17:53:23,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/data/fb79eeea1/46f65da2cd9947d79ade671f78efb1bc/FLAG3f1d2acb0 [2021-11-25 17:53:23,713 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:53:23,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i [2021-11-25 17:53:23,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/data/fb79eeea1/46f65da2cd9947d79ade671f78efb1bc/FLAG3f1d2acb0 [2021-11-25 17:53:23,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/data/fb79eeea1/46f65da2cd9947d79ade671f78efb1bc [2021-11-25 17:53:23,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:53:23,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:53:23,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:53:23,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:53:23,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:53:23,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:23" (1/1) ... [2021-11-25 17:53:23,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7f668b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:23, skipping insertion in model container [2021-11-25 17:53:23,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:23" (1/1) ... [2021-11-25 17:53:23,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:53:24,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:53:24,416 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_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2021-11-25 17:53:24,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:24,537 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:53:24,570 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_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test4-1.i[33021,33034] [2021-11-25 17:53:24,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:24,712 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:53:24,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24 WrapperNode [2021-11-25 17:53:24,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:53:24,714 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:24,714 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:53:24,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:53:24,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,841 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-25 17:53:24,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:24,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:53:24,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:53:24,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:53:24,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:24,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:25,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:25,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:53:25,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:53:25,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:53:25,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:53:25,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (1/1) ... [2021-11-25 17:53:25,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:53:25,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:25,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:53:25,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:53:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:53:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 17:53:25,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 17:53:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:53:25,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:53:25,123 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:53:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:53:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:53:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:53:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:53:25,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:53:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:53:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:53:25,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:53:25,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:53:25,331 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:53:25,332 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:53:26,594 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:53:27,100 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:53:27,101 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-25 17:53:27,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:27 BoogieIcfgContainer [2021-11-25 17:53:27,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:53:27,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:53:27,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:53:27,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:53:27,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:53:23" (1/3) ... [2021-11-25 17:53:27,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ac96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:27, skipping insertion in model container [2021-11-25 17:53:27,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:24" (2/3) ... [2021-11-25 17:53:27,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9ac96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:27, skipping insertion in model container [2021-11-25 17:53:27,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:27" (3/3) ... [2021-11-25 17:53:27,120 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test4-1.i [2021-11-25 17:53:27,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:53:27,127 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-25 17:53:27,192 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:53:27,202 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:53:27,203 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-25 17:53:27,233 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) [2021-11-25 17:53:27,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 17:53:27,237 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:27,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 17:53:27,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-25 17:53:27,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:27,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844846837] [2021-11-25 17:53:27,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:27,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:27,393 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:27,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292491560] [2021-11-25 17:53:27,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:27,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:27,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:27,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:27,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:53:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:27,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:53:27,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:27,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:27,673 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:27,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844846837] [2021-11-25 17:53:27,673 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:27,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292491560] [2021-11-25 17:53:27,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292491560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:27,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:27,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 17:53:27,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089418628] [2021-11-25 17:53:27,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:27,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:27,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:27,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:27,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:27,736 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) [2021-11-25 17:53:29,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:29,164 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-25 17:53:29,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:29,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-25 17:53:29,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:29,185 INFO L225 Difference]: With dead ends: 368 [2021-11-25 17:53:29,185 INFO L226 Difference]: Without dead ends: 233 [2021-11-25 17:53:29,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:29,192 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:29,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 17:53:29,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-25 17:53:29,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-25 17:53:29,320 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) [2021-11-25 17:53:29,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-25 17:53:29,325 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-25 17:53:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:29,326 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-25 17:53:29,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-25 17:53:29,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 17:53:29,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:29,329 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] [2021-11-25 17:53:29,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:29,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:29,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-25 17:53:29,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341866407] [2021-11-25 17:53:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:29,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:29,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:29,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950188880] [2021-11-25 17:53:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:29,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:29,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:29,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:29,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:53:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:31,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 3016 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:53:31,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:31,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:31,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:31,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341866407] [2021-11-25 17:53:31,227 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:31,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950188880] [2021-11-25 17:53:31,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950188880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:31,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:31,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:53:31,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393816684] [2021-11-25 17:53:31,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:31,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:31,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:31,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:31,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:31,230 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) [2021-11-25 17:53:34,224 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 [] [2021-11-25 17:53:34,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:34,817 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-25 17:53:34,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:34,827 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 [2021-11-25 17:53:34,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:34,829 INFO L225 Difference]: With dead ends: 233 [2021-11-25 17:53:34,830 INFO L226 Difference]: Without dead ends: 232 [2021-11-25 17:53:34,830 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 [2021-11-25 17:53:34,832 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:34,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 17:53:34,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-25 17:53:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-25 17:53:34,853 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) [2021-11-25 17:53:34,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-25 17:53:34,855 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-25 17:53:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:34,856 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-25 17:53:34,856 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) [2021-11-25 17:53:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-25 17:53:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 17:53:34,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:34,859 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] [2021-11-25 17:53:34,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:35,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:35,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:35,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:35,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-25 17:53:35,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:35,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965205791] [2021-11-25 17:53:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:35,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:35,351 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:35,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [823593205] [2021-11-25 17:53:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:35,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:35,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:35,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:35,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:53:36,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:36,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:53:36,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:36,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:36,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:36,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965205791] [2021-11-25 17:53:36,850 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:36,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823593205] [2021-11-25 17:53:36,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823593205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:36,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:36,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:53:36,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380579200] [2021-11-25 17:53:36,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:36,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:36,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:36,856 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) [2021-11-25 17:53:38,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 17:53:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:39,005 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-25 17:53:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:39,011 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 [2021-11-25 17:53:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:39,013 INFO L225 Difference]: With dead ends: 230 [2021-11-25 17:53:39,013 INFO L226 Difference]: Without dead ends: 229 [2021-11-25 17:53:39,014 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 [2021-11-25 17:53:39,015 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:39,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 17:53:39,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-25 17:53:39,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-25 17:53:39,039 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) [2021-11-25 17:53:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-25 17:53:39,042 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-25 17:53:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:39,042 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-25 17:53:39,042 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) [2021-11-25 17:53:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-25 17:53:39,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 17:53:39,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:39,045 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] [2021-11-25 17:53:39,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:39,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:39,261 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:39,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:39,262 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-25 17:53:39,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:39,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566207986] [2021-11-25 17:53:39,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:39,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:39,510 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:39,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637904322] [2021-11-25 17:53:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:39,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:39,513 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:39,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:53:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:40,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:53:40,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:41,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:41,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:41,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566207986] [2021-11-25 17:53:41,145 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:41,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637904322] [2021-11-25 17:53:41,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637904322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:41,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:41,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:53:41,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559197919] [2021-11-25 17:53:41,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:41,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:41,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:41,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:41,148 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) [2021-11-25 17:53:43,985 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 [] [2021-11-25 17:53:44,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:44,244 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-25 17:53:44,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:44,250 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 [2021-11-25 17:53:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:44,253 INFO L225 Difference]: With dead ends: 384 [2021-11-25 17:53:44,254 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 17:53:44,255 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 [2021-11-25 17:53:44,257 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:44,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-25 17:53:44,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 17:53:44,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 17:53:44,283 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) [2021-11-25 17:53:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-25 17:53:44,285 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-25 17:53:44,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:44,286 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-25 17:53:44,286 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) [2021-11-25 17:53:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-25 17:53:44,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 17:53:44,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:44,290 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] [2021-11-25 17:53:44,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:53:44,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:44,517 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:44,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:44,517 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-25 17:53:44,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:44,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852309010] [2021-11-25 17:53:44,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:44,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:44,641 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:44,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1785974666] [2021-11-25 17:53:44,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:44,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:44,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:44,654 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:44,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:53:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:45,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 17:53:45,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 17:53:46,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:46,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:46,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852309010] [2021-11-25 17:53:46,029 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:46,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785974666] [2021-11-25 17:53:46,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785974666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:46,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:46,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 17:53:46,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870103031] [2021-11-25 17:53:46,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:46,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:53:46,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:53:46,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:53:46,031 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) [2021-11-25 17:53:47,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:47,685 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-25 17:53:47,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:53:47,693 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 [2021-11-25 17:53:47,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:47,695 INFO L225 Difference]: With dead ends: 426 [2021-11-25 17:53:47,695 INFO L226 Difference]: Without dead ends: 225 [2021-11-25 17:53:47,697 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 [2021-11-25 17:53:47,698 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:47,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 17:53:47,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-25 17:53:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-25 17:53:47,715 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) [2021-11-25 17:53:47,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-25 17:53:47,717 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-25 17:53:47,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:47,718 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-25 17:53:47,718 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) [2021-11-25 17:53:47,718 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-25 17:53:47,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 17:53:47,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:47,722 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] [2021-11-25 17:53:47,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 17:53:47,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:47,937 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 17:53:47,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-25 17:53:47,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:47,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563724191] [2021-11-25 17:53:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:47,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:48,002 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:48,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417546976] [2021-11-25 17:53:48,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:48,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:48,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:48,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:48,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 17:53:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:50,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:53:50,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:50,782 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 17:53:50,782 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:53:50,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563724191] [2021-11-25 17:53:50,783 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:50,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417546976] [2021-11-25 17:53:50,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417546976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:50,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:50,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:50,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967620412] [2021-11-25 17:53:50,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:50,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:50,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:50,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:50,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:50,785 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) [2021-11-25 17:53:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:53,000 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-25 17:53:53,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:53,007 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 [2021-11-25 17:53:53,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:53,011 INFO L225 Difference]: With dead ends: 432 [2021-11-25 17:53:53,011 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 17:53:53,012 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 [2021-11-25 17:53:53,014 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s 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, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:53,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 17:53:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 17:53:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 17:53:53,033 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) [2021-11-25 17:53:53,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-25 17:53:53,036 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-25 17:53:53,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:53,036 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-25 17:53:53,037 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) [2021-11-25 17:53:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-25 17:53:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 17:53:53,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:53,051 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] [2021-11-25 17:53:53,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-25 17:53:53,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:53,265 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)] === [2021-11-25 17:53:53,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:53,266 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-25 17:53:53,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:53,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962934586] [2021-11-25 17:53:53,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:53,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:53,365 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 17:53:53,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713729955] [2021-11-25 17:53:53,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:53,365 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:53:53,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:53,381 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:53:53,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c44ed99c-a6a1-42f7-87c5-ef7ecdcd5b59/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 17:53:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:55,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 17:53:55,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:53:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 17:53:55,995 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:53:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 17:53:56,227 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:56,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962934586] [2021-11-25 17:53:56,228 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 17:53:56,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713729955] [2021-11-25 17:53:56,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713729955] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:53:56,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1509819297] [2021-11-25 17:53:56,257 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-25 17:53:56,258 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:53:56,264 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:53:56,270 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:53:56,270 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:53:56,643 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 17:53:56,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-25 17:53:56,696 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 17:53:56,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 17:53:56,715 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 15 treesize of output 1 [2021-11-25 17:53:56,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 17:53:56,735 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 15 treesize of output 1 [2021-11-25 17:53:56,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 17:53:56,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 17:53:56,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:56,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 17:53:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 17:53:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-25 17:53:57,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-25 17:53:57,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 17:53:57,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 17:53:57,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 17:53:57,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,470 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 [2021-11-25 17:53:57,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 17:53:57,631 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 17:53:57,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2021-11-25 17:53:57,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2021-11-25 17:53:57,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 17:53:57,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 17:53:57,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:53:57,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 17:53:57,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:53:57,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 17:53:57,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 17:53:57,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:57,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 17:53:57,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:53:57,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 17:53:57,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 17:53:58,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 17:53:58,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-25 17:53:58,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,066 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 [2021-11-25 17:53:58,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 17:53:58,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,211 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 [2021-11-25 17:53:58,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:53:58,237 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 [2021-11-25 17:54:05,025 WARN L227 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:05,026 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 17:54:05,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 17:54:05,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:16,247 WARN L227 SmtUtils]: Spent 11.12s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:16,248 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 17:54:16,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 17:54:16,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:17,060 INFO L244 Elim1Store]: Index analysis took 555 ms [2021-11-25 17:54:29,311 WARN L227 SmtUtils]: Spent 11.97s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 17:54:29,312 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 17:54:29,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 17:54:30,747 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 17:54:30,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 17:54:30,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 17:54:31,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:31,579 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 17:54:31,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 17:54:31,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:32,018 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:54:32,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 17:54:32,090 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:32,157 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:32,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:32,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 17:54:32,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:32,642 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 17:54:32,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 17:54:32,693 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,025 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 17:54:33,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 24 [2021-11-25 17:54:33,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:33,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 17:54:33,189 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:33,234 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:33,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,376 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:33,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:33,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 57 [2021-11-25 17:54:34,405 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:34,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:34,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,507 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-25 17:54:34,589 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:54:34,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3554 treesize of output 3334 [2021-11-25 17:54:34,720 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:34,783 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:34,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:34,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:34,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:34,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,035 INFO L244 Elim1Store]: Index analysis took 169 ms [2021-11-25 17:54:35,138 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 17:54:35,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3244 treesize of output 3012 [2021-11-25 17:54:35,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:35,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 17:54:35,398 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:35,441 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:35,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:35,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,751 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 17:54:35,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 17:54:35,963 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:35,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:35,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:36,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:36,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:36,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:36,129 INFO L244 Elim1Store]: Index analysis took 166 ms [2021-11-25 17:54:36,143 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 17:54:36,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 17:54:36,840 INFO L244 Elim1Store]: Index analysis took 213 ms [2021-11-25 17:54:37,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:38,547 INFO L354 Elim1Store]: treesize reduction 389, result has 79.0 percent of original size [2021-11-25 17:54:38,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3586 treesize of output 4585 [2021-11-25 17:54:39,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:39,634 INFO L244 Elim1Store]: Index analysis took 119 ms [2021-11-25 17:54:40,006 INFO L354 Elim1Store]: treesize reduction 1803, result has 2.5 percent of original size [2021-11-25 17:54:40,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3575 treesize of output 3165 [2021-11-25 17:54:40,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:40,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:40,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:40,561 INFO L244 Elim1Store]: Index analysis took 187 ms [2021-11-25 17:54:42,559 INFO L354 Elim1Store]: treesize reduction 413, result has 77.9 percent of original size [2021-11-25 17:54:42,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4256 [2021-11-25 17:54:45,335 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:45,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:45,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:45,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:45,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:45,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:45,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:45,435 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 17:54:45,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3188 treesize of output 2794 [2021-11-25 17:54:45,539 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:45,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:46,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:46,814 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 17:54:46,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3591 treesize of output 1 [2021-11-25 17:54:49,063 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:49,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:49,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:49,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:49,660 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 17:54:49,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3554 treesize of output 3840 [2021-11-25 17:54:49,812 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:49,868 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:50,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:50,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,589 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 17:54:50,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 17:54:50,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:50,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:50,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 17:54:50,896 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:50,953 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 17:54:51,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,271 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 17:54:51,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 17:54:51,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 17:54:51,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:51,638 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 17:54:51,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 17:54:53,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:53,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:54,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:54,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:54:54,040 INFO L244 Elim1Store]: Index analysis took 164 ms [2021-11-25 17:54:57,949 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 17:54:57,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 118197 treesize of output 117947 [2021-11-25 17:59:20,895 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 17:59:45,436 WARN L227 SmtUtils]: Spent 19.26s on a formula simplification. DAG size of input: 1853 DAG size of output: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 18:02:56,311 WARN L227 SmtUtils]: Spent 20.02s on a formula simplification. DAG size of input: 1677 DAG size of output: 1677 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)