./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.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_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/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_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/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_236939b0-8764-4047-a5d0-5763d6b8dd65/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 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:36:33,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:36:33,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:36:33,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:36:33,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:36:33,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:36:33,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:36:33,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:36:33,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:36:33,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:36:33,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:36:33,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:36:33,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:36:33,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:36:33,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:36:33,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:36:33,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:36:33,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:36:33,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:36:33,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:36:33,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:36:33,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:36:33,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:36:33,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:36:33,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:36:33,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:36:33,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:36:33,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:36:33,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:36:33,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:36:33,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:36:33,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:36:33,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:36:33,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:36:33,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:36:33,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:36:33,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:36:33,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:36:33,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:36:33,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:36:33,394 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:36:33,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 18:36:33,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:36:33,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:36:33,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:36:33,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:36:33,453 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:36:33,453 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:36:33,453 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:36:33,454 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:36:33,454 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:36:33,454 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:36:33,455 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:36:33,455 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:36:33,455 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:36:33,456 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:36:33,456 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:36:33,456 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:36:33,456 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:36:33,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:36:33,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:36:33,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:36:33,458 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 18:36:33,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:36:33,458 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:36:33,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:36:33,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:36:33,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:36:33,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:36:33,459 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 18:36:33,459 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:36:33,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:36:33,460 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:36:33,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:36:33,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:36:33,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:36:33,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:36:33,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:36:33,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:36:33,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:36:33,462 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:36:33,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:36:33,462 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:36:33,462 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:36:33,462 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:36:33,464 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_236939b0-8764-4047-a5d0-5763d6b8dd65/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8374eced2cbda6aab489eb004cb8e41f23aad88b98cd5c6913f13583171f2c3f [2021-11-25 18:36:33,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:36:33,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:36:33,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:36:33,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:36:33,814 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:36:33,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2021-11-25 18:36:33,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/data/f97ce6ba7/54422129ca494788b079fae38c8f5aaa/FLAGafcf87612 [2021-11-25 18:36:34,510 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:36:34,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i [2021-11-25 18:36:34,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/data/f97ce6ba7/54422129ca494788b079fae38c8f5aaa/FLAGafcf87612 [2021-11-25 18:36:34,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/data/f97ce6ba7/54422129ca494788b079fae38c8f5aaa [2021-11-25 18:36:34,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:36:34,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:36:34,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:36:34,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:36:34,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:36:34,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:36:34" (1/1) ... [2021-11-25 18:36:34,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197a350b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:34, skipping insertion in model container [2021-11-25 18:36:34,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:36:34" (1/1) ... [2021-11-25 18:36:34,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:36:34,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:36:35,393 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44118,44131] [2021-11-25 18:36:35,402 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44660,44673] [2021-11-25 18:36:35,502 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56247,56260] [2021-11-25 18:36:35,503 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56368,56381] [2021-11-25 18:36:35,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:36:35,533 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:36:35,571 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44118,44131] [2021-11-25 18:36:35,574 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[44660,44673] [2021-11-25 18:36:35,655 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56247,56260] [2021-11-25 18:36:35,656 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_236939b0-8764-4047-a5d0-5763d6b8dd65/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-1.i[56368,56381] [2021-11-25 18:36:35,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:36:35,738 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:36:35,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35 WrapperNode [2021-11-25 18:36:35,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:36:35,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:36:35,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:36:35,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:36:35,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:35,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:35,907 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-25 18:36:35,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:36:35,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:36:35,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:36:35,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:36:35,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:35,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:35,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:35,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:36,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:36,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:36,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:36,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:36:36,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:36:36,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:36:36,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:36:36,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (1/1) ... [2021-11-25 18:36:36,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:36:36,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:36,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:36:36,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:36:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:36:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 18:36:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:36:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:36:36,235 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-25 18:36:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 18:36:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:36:36,236 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-25 18:36:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-25 18:36:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:36:36,237 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-25 18:36:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-25 18:36:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:36:36,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:36:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:36:36,492 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:36:36,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:36:37,621 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:36:37,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:36:37,988 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 18:36:37,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:36:37 BoogieIcfgContainer [2021-11-25 18:36:37,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:36:37,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:36:37,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:36:37,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:36:37,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:36:34" (1/3) ... [2021-11-25 18:36:38,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e6904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:36:38, skipping insertion in model container [2021-11-25 18:36:38,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:36:35" (2/3) ... [2021-11-25 18:36:38,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e6904d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:36:38, skipping insertion in model container [2021-11-25 18:36:38,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:36:37" (3/3) ... [2021-11-25 18:36:38,005 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-1.i [2021-11-25 18:36:38,010 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:36:38,010 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-25 18:36:38,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:36:38,088 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 18:36:38,089 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-25 18:36:38,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 18:36:38,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 18:36:38,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:38,115 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 18:36:38,116 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:38,125 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-25 18:36:38,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:38,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952978715] [2021-11-25 18:36:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:38,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:38,247 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:38,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [226125630] [2021-11-25 18:36:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:38,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:38,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:38,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:38,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:36:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:38,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-25 18:36:38,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:38,678 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-11-25 18:36:38,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 51 [2021-11-25 18:36:38,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:36:38,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:36:38,930 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:36:38,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-25 18:36:38,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:36:39,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:39,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 18:36:39,040 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 18:36:39,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:39,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:39,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952978715] [2021-11-25 18:36:39,041 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:39,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226125630] [2021-11-25 18:36:39,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226125630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:39,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:39,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:36:39,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562217469] [2021-11-25 18:36:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:39,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:36:39,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:39,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:36:39,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:36:39,097 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:41,520 INFO L93 Difference]: Finished difference Result 376 states and 608 transitions. [2021-11-25 18:36:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:36:41,533 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-25 18:36:41,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:41,544 INFO L225 Difference]: With dead ends: 376 [2021-11-25 18:36:41,544 INFO L226 Difference]: Without dead ends: 206 [2021-11-25 18:36:41,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:36:41,552 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 64 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:41,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 420 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 18:36:41,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-25 18:36:41,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 153. [2021-11-25 18:36:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-25 18:36:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-25 18:36:41,606 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-25 18:36:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:41,607 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-25 18:36:41,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-25 18:36:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 18:36:41,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:41,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:41,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:41,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:41,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:41,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:41,826 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-25 18:36:41,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:41,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107532219] [2021-11-25 18:36:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:41,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:41,893 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:41,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027811209] [2021-11-25 18:36:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:41,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:41,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:41,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:36:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:42,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:36:42,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:42,219 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 18:36:42,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:42,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:42,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107532219] [2021-11-25 18:36:42,220 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:42,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027811209] [2021-11-25 18:36:42,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027811209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:42,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:42,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:36:42,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90061594] [2021-11-25 18:36:42,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:42,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:36:42,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:42,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:36:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:36:42,227 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:44,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:44,026 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-25 18:36:44,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:36:44,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 18:36:44,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:44,032 INFO L225 Difference]: With dead ends: 261 [2021-11-25 18:36:44,032 INFO L226 Difference]: Without dead ends: 259 [2021-11-25 18:36:44,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 18:36:44,034 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:44,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 18:36:44,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-25 18:36:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-25 18:36:44,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 18:36:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-25 18:36:44,059 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-25 18:36:44,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:44,060 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-25 18:36:44,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:44,060 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-25 18:36:44,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:36:44,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:44,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:44,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:44,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:44,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:44,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-25 18:36:44,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:44,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594208912] [2021-11-25 18:36:44,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:44,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:44,328 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:44,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119271948] [2021-11-25 18:36:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:44,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:44,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:44,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:44,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:36:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:44,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:36:44,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:44,618 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 18:36:44,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:44,619 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:44,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594208912] [2021-11-25 18:36:44,619 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:44,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119271948] [2021-11-25 18:36:44,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119271948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:44,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:44,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:36:44,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218800381] [2021-11-25 18:36:44,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:44,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:36:44,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:44,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:36:44,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:36:44,623 INFO L87 Difference]: Start difference. First operand 249 states and 298 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:46,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:36:47,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:47,092 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-25 18:36:47,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:36:47,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-25 18:36:47,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:47,101 INFO L225 Difference]: With dead ends: 441 [2021-11-25 18:36:47,101 INFO L226 Difference]: Without dead ends: 439 [2021-11-25 18:36:47,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 18:36:47,103 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:47,104 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 18:36:47,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-25 18:36:47,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-25 18:36:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 18:36:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-25 18:36:47,142 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-25 18:36:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:47,142 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-25 18:36:47,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-25 18:36:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 18:36:47,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:47,144 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] [2021-11-25 18:36:47,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 18:36:47,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:47,358 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:47,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:47,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-25 18:36:47,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:47,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809775132] [2021-11-25 18:36:47,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:47,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:47,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:47,478 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 18:36:47,478 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:47,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809775132] [2021-11-25 18:36:47,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809775132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:47,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:47,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:36:47,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541910779] [2021-11-25 18:36:47,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:47,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:36:47,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:47,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:36:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:36:47,482 INFO L87 Difference]: Start difference. First operand 428 states and 529 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 18:36:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:49,763 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-25 18:36:49,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:36:49,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 24 [2021-11-25 18:36:49,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:49,771 INFO L225 Difference]: With dead ends: 682 [2021-11-25 18:36:49,771 INFO L226 Difference]: Without dead ends: 562 [2021-11-25 18:36:49,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:36:49,774 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:49,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 18:36:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-25 18:36:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-25 18:36:49,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 18:36:49,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-25 18:36:49,812 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-25 18:36:49,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:49,813 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-25 18:36:49,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 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 18:36:49,813 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-25 18:36:49,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 18:36:49,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:49,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:49,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:36:49,815 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:49,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:49,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-25 18:36:49,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:49,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751702370] [2021-11-25 18:36:49,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:49,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:49,844 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:49,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383841130] [2021-11-25 18:36:49,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:49,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:49,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:49,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:49,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:36:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:50,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 18:36:50,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:50,135 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 18:36:50,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:50,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:50,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751702370] [2021-11-25 18:36:50,136 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:50,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383841130] [2021-11-25 18:36:50,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383841130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:50,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:50,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:36:50,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786779018] [2021-11-25 18:36:50,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:50,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:36:50,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:50,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:36:50,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:50,138 INFO L87 Difference]: Start difference. First operand 428 states and 528 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:36:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:51,600 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-25 18:36:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:36:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-25 18:36:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:51,611 INFO L225 Difference]: With dead ends: 454 [2021-11-25 18:36:51,611 INFO L226 Difference]: Without dead ends: 453 [2021-11-25 18:36:51,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 18:36:51,613 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:51,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 18:36:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-25 18:36:51,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-25 18:36:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 18:36:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-25 18:36:51,646 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-25 18:36:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:51,647 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-25 18:36:51,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:36:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-25 18:36:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 18:36:51,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:51,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:51,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:36:51,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:51,869 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:51,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-25 18:36:51,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:51,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948513401] [2021-11-25 18:36:51,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:51,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:51,913 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:51,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [426005836] [2021-11-25 18:36:51,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:51,914 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:51,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:51,915 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:51,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 18:36:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:52,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 18:36:52,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:52,226 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 18:36:52,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:52,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:52,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948513401] [2021-11-25 18:36:52,226 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:52,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426005836] [2021-11-25 18:36:52,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426005836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:52,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:52,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 18:36:52,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082351980] [2021-11-25 18:36:52,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:52,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:36:52,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:52,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:36:52,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:52,229 INFO L87 Difference]: Start difference. First operand 443 states and 545 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:36:53,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:53,022 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-25 18:36:53,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:36:53,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-25 18:36:53,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:53,031 INFO L225 Difference]: With dead ends: 443 [2021-11-25 18:36:53,031 INFO L226 Difference]: Without dead ends: 442 [2021-11-25 18:36:53,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:53,033 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:53,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 18:36:53,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-25 18:36:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-25 18:36:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 18:36:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-25 18:36:53,059 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-25 18:36:53,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:53,059 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-25 18:36:53,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 18:36:53,060 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-25 18:36:53,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 18:36:53,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:53,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:36:53,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 18:36:53,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:53,278 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:53,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-25 18:36:53,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:53,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344603109] [2021-11-25 18:36:53,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:53,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:53,394 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:53,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637448139] [2021-11-25 18:36:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:53,402 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:53,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:53,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 18:36:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:54,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:36:54,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:54,176 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 18:36:54,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:36:54,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:54,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344603109] [2021-11-25 18:36:54,181 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:54,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637448139] [2021-11-25 18:36:54,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637448139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:36:54,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:36:54,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:36:54,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836978984] [2021-11-25 18:36:54,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:36:54,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:36:54,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:36:54,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:36:54,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:54,187 INFO L87 Difference]: Start difference. First operand 442 states and 543 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:55,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:36:55,816 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-25 18:36:55,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:36:55,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-25 18:36:55,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:36:55,824 INFO L225 Difference]: With dead ends: 814 [2021-11-25 18:36:55,824 INFO L226 Difference]: Without dead ends: 377 [2021-11-25 18:36:55,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:36:55,828 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:36:55,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 18:36:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-25 18:36:55,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-25 18:36:55,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 18:36:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-25 18:36:55,848 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-25 18:36:55,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:36:55,848 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-25 18:36:55,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:36:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-25 18:36:55,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 18:36:55,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:36:55,850 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] [2021-11-25 18:36:55,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-25 18:36:56,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:56,065 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:36:56,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:36:56,066 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-25 18:36:56,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:36:56,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16578311] [2021-11-25 18:36:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:56,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:36:56,108 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:36:56,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196810588] [2021-11-25 18:36:56,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:36:56,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:36:56,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:36:56,110 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:36:56,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 18:36:56,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:36:56,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 18:36:56,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:36:56,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:36:56,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:36:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:36:56,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:36:56,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16578311] [2021-11-25 18:36:56,844 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:36:56,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196810588] [2021-11-25 18:36:56,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196810588] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:36:56,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1203704210] [2021-11-25 18:36:56,864 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-25 18:36:56,864 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:36:56,869 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:36:56,874 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:36:56,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:36:56,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:56,988 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:36:56,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:36:57,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-25 18:36:57,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:36:57,036 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 18:36:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:36:57,058 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 18:36:57,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,167 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 18:36:57,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 18:36:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-25 18:36:57,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 18:36:57,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 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 18:36:57,234 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 15 treesize of output 1 [2021-11-25 18:36:57,246 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 15 treesize of output 1 [2021-11-25 18:36:57,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:36:57,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:36:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2021-11-25 18:36:57,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 34 [2021-11-25 18:36:57,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:36:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 96 [2021-11-25 18:36:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 48 treesize of output 46 [2021-11-25 18:36:57,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 92 [2021-11-25 18:36:57,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-11-25 18:36:57,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:36:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 105 [2021-11-25 18:36:58,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 103 [2021-11-25 18:36:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-11-25 18:36:58,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2021-11-25 18:36:58,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:36:58,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:36:58,244 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 18:36:58,248 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 25 treesize of output 1 [2021-11-25 18:36:58,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-25 18:36:58,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-25 18:36:58,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:36:58,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 18:36:58,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 18:36:58,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 27 [2021-11-25 18:36:58,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:36:58,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 18:36:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:36:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:36:58,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:36:58,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 18:36:58,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:36:58,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:36:58,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,676 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 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 18:36:58,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:36:58,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 18:36:58,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:36:58,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:36:58,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:36:58,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:36:59,015 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 56 for LOIs [2021-11-25 18:36:59,111 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 129 for LOIs [2021-11-25 18:36:59,435 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:37:03,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1203704210] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:03,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:37:03,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-25 18:37:03,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454032761] [2021-11-25 18:37:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:03,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 18:37:03,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 18:37:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 18:37:03,810 INFO L87 Difference]: Start difference. First operand 368 states and 441 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:37:09,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:11,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:11,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:11,889 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-25 18:37:11,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 18:37:11,890 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-25 18:37:11,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:11,892 INFO L225 Difference]: With dead ends: 725 [2021-11-25 18:37:11,892 INFO L226 Difference]: Without dead ends: 365 [2021-11-25 18:37:11,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 18:37:11,895 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 438 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:11,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1372 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 649 Invalid, 0 Unknown, 438 Unchecked, 8.0s Time] [2021-11-25 18:37:11,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-25 18:37:11,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-25 18:37:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 18:37:11,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-25 18:37:11,917 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-25 18:37:11,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:11,918 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-25 18:37:11,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 18:37:11,918 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-25 18:37:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 18:37:11,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:11,919 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] [2021-11-25 18:37:11,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 18:37:12,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-25 18:37:12,145 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:37:12,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:12,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-25 18:37:12,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:12,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360391976] [2021-11-25 18:37:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:12,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:12,175 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:37:12,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1372031911] [2021-11-25 18:37:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:12,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:12,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:37:12,189 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:37:12,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 18:37:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:12,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 18:37:12,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:37:12,634 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 18:37:12,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:37:12,634 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:12,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360391976] [2021-11-25 18:37:12,635 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:37:12,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1372031911] [2021-11-25 18:37:12,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1372031911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:12,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:37:12,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:37:12,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977191062] [2021-11-25 18:37:12,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:12,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:37:12,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:37:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:37:12,637 INFO L87 Difference]: Start difference. First operand 365 states and 436 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:37:14,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:15,750 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-25 18:37:15,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:37:15,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-25 18:37:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:15,755 INFO L225 Difference]: With dead ends: 664 [2021-11-25 18:37:15,756 INFO L226 Difference]: Without dead ends: 662 [2021-11-25 18:37:15,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 18:37:15,757 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:15,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-25 18:37:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-25 18:37:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-25 18:37:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 18:37:15,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-25 18:37:15,804 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-25 18:37:15,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:15,805 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-25 18:37:15,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 18:37:15,805 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-25 18:37:15,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 18:37:15,806 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:15,807 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:37:15,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 18:37:16,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-25 18:37:16,033 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:37:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:16,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-25 18:37:16,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:16,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493612749] [2021-11-25 18:37:16,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:16,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:16,066 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:37:16,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71685422] [2021-11-25 18:37:16,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:16,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:16,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:37:16,086 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:37:16,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 18:37:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:16,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:37:16,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:37:16,592 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:37:16,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:37:16,746 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 18:37:16,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:16,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493612749] [2021-11-25 18:37:16,747 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:37:16,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71685422] [2021-11-25 18:37:16,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71685422] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:37:16,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1717791841] [2021-11-25 18:37:16,751 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 18:37:16,751 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:37:16,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:37:16,751 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:37:16,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:37:16,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:37:16,800 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-25 18:37:16,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-25 18:37:16,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:37:16,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-25 18:37:16,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-25 18:37:16,841 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-11-25 18:37:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,906 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:37:16,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:37:16,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 18:37:16,926 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 18:37:16,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:37:16,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,038 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 18:37:17,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 18:37:17,055 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 15 treesize of output 1 [2021-11-25 18:37:17,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 81 [2021-11-25 18:37:17,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 18:37:17,105 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 15 treesize of output 1 [2021-11-25 18:37:17,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 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 18:37:17,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 114 [2021-11-25 18:37:17,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 34 [2021-11-25 18:37:17,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:17,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:37:17,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:37:17,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 132 [2021-11-25 18:37:17,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 48 treesize of output 46 [2021-11-25 18:37:17,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 128 [2021-11-25 18:37:17,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 58 [2021-11-25 18:37:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 141 [2021-11-25 18:37:17,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 139 [2021-11-25 18:37:17,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-11-25 18:37:17,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:17,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 61 [2021-11-25 18:37:18,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:37:18,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:37:18,271 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 18:37:18,275 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 25 treesize of output 1 [2021-11-25 18:37:18,279 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 25 treesize of output 1 [2021-11-25 18:37:18,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-25 18:37:18,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:37:18,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,396 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 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 18:37:18,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 18:37:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 18:37:18,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:37:18,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:18,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:18,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 18:37:18,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:37:18,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:18,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:18,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,817 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 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 18:37:18,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2021-11-25 18:37:18,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 21 [2021-11-25 18:37:18,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:37:18,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 18:37:18,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:18,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 18:37:19,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:19,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:37:19,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:37:20,271 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 80 for LOIs [2021-11-25 18:37:20,394 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 138 for LOIs [2021-11-25 18:37:21,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 18:37:21,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 18:37:21,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:21,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:21,176 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 148 treesize of output 122 [2021-11-25 18:37:21,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 18:37:21,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:21,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:21,554 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 148 treesize of output 122 [2021-11-25 18:37:21,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 18:37:22,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:22,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:22,103 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 153 treesize of output 127 [2021-11-25 18:37:22,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 18:37:22,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 18:37:22,282 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 130 for LOIs [2021-11-25 18:37:22,441 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 18:37:28,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1717791841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:37:28,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 18:37:28,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-25 18:37:28,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582864527] [2021-11-25 18:37:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:37:28,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 18:37:28,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:37:28,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 18:37:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 18:37:28,504 INFO L87 Difference]: Start difference. First operand 650 states and 795 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 18:37:32,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:35,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:37,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:38,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 18:37:40,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:37:40,049 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-25 18:37:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 18:37:40,049 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-25 18:37:40,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:37:40,054 INFO L225 Difference]: With dead ends: 1272 [2021-11-25 18:37:40,054 INFO L226 Difference]: Without dead ends: 652 [2021-11-25 18:37:40,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 18:37:40,057 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 9 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 645 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:37:40,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1533 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 1 Unknown, 645 Unchecked, 11.5s Time] [2021-11-25 18:37:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-25 18:37:40,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-25 18:37:40,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 18:37:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-25 18:37:40,092 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-25 18:37:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:37:40,092 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-25 18:37:40,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-25 18:37:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-25 18:37:40,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 18:37:40,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:37:40,094 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:37:40,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 18:37:40,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:40,309 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-25 18:37:40,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:37:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-25 18:37:40,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:37:40,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657446280] [2021-11-25 18:37:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:40,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:37:40,344 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 18:37:40,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181131102] [2021-11-25 18:37:40,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:37:40,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:37:40,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:37:40,360 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:37:40,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_236939b0-8764-4047-a5d0-5763d6b8dd65/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 18:37:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:37:40,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 18:37:40,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:37:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 18:37:40,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 18:37:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 18:37:41,140 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:37:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657446280] [2021-11-25 18:37:41,141 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 18:37:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181131102] [2021-11-25 18:37:41,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181131102] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 18:37:41,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1637736947] [2021-11-25 18:37:41,144 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 18:37:41,144 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 18:37:41,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 18:37:41,145 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 18:37:41,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 18:37:41,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 18:37:41,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,211 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 18:37:41,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 18:37:41,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-25 18:37:41,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-25 18:37:41,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 18:37:41,260 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 18:37:41,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,351 INFO L354 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-11-25 18:37:41,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 65 [2021-11-25 18:37:41,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-25 18:37:41,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,430 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:37:41,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-25 18:37:41,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,514 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 18:37:41,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 46 [2021-11-25 18:37:41,526 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 15 treesize of output 1 [2021-11-25 18:37:41,536 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 15 treesize of output 1 [2021-11-25 18:37:41,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:41,597 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 18:37:41,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-25 18:37:41,655 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 15 treesize of output 11 [2021-11-25 18:37:41,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:41,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:42,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:37:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 18:37:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 49 [2021-11-25 18:37:42,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 64 [2021-11-25 18:37:42,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:37:42,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 18:37:42,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,226 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 97 treesize of output 73 [2021-11-25 18:37:42,358 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 18:37:42,362 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 25 treesize of output 1 [2021-11-25 18:37:42,366 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 25 treesize of output 1 [2021-11-25 18:37:42,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 18:37:42,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-25 18:37:42,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:42,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:42,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2021-11-25 18:37:42,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:42,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-25 18:37:42,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 37 [2021-11-25 18:37:42,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 18:37:42,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:37:42,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 18:37:42,820 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 18:37:42,826 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 18:37:42,832 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 18:37:42,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,871 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 107 treesize of output 106 [2021-11-25 18:37:42,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,880 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 107 treesize of output 106 [2021-11-25 18:37:42,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:42,889 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 109 treesize of output 108 [2021-11-25 18:37:42,914 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 18:37:42,920 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 18:37:42,927 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 18:37:42,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 18:37:42,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-25 18:37:43,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-25 18:37:43,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-25 18:37:44,790 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 18:37:44,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1330 treesize of output 951 [2021-11-25 18:37:44,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:46,627 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 18:37:46,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1387 treesize of output 1153 [2021-11-25 18:37:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:48,839 INFO L354 Elim1Store]: treesize reduction 1060, result has 37.8 percent of original size [2021-11-25 18:37:48,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 726 treesize of output 805 [2021-11-25 18:37:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,157 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 18:37:49,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 18:37:49,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,313 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:37:49,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 18:37:49,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-25 18:37:49,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,547 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-25 18:37:49,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-25 18:37:49,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,680 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 18:37:49,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-25 18:37:49,712 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:37:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-25 18:37:49,810 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,846 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,903 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:37:49,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:49,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-25 18:37:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:53,390 INFO L354 Elim1Store]: treesize reduction 1396, result has 19.4 percent of original size [2021-11-25 18:37:53,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 4880 treesize of output 3839 [2021-11-25 18:37:53,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:37:55,133 INFO L354 Elim1Store]: treesize reduction 1100, result has 26.4 percent of original size [2021-11-25 18:37:55,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 4924 treesize of output 3565 [2021-11-25 18:38:13,837 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:13,870 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,125 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,311 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,376 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,564 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,732 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,775 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,858 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,897 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,922 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:14,978 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:15,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:38:15,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 147 [2021-11-25 18:38:15,257 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:15,371 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:15,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,427 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 18:38:15,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 18:38:15,575 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:38:15,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:15,742 INFO L354 Elim1Store]: treesize reduction 116, result has 43.4 percent of original size [2021-11-25 18:38:15,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 446 treesize of output 486 [2021-11-25 18:38:16,850 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:17,406 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:17,423 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:38:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:17,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:17,521 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 18:38:17,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 18:38:19,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,203 INFO L354 Elim1Store]: treesize reduction 140, result has 28.2 percent of original size [2021-11-25 18:38:19,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 396 treesize of output 394 [2021-11-25 18:38:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,523 INFO L354 Elim1Store]: treesize reduction 94, result has 51.8 percent of original size [2021-11-25 18:38:19,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 474 treesize of output 514 [2021-11-25 18:38:19,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,800 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:38:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:19,871 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 18:38:19,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 1344 treesize of output 1296 [2021-11-25 18:38:20,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:20,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:20,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:38:20,980 INFO L354 Elim1Store]: treesize reduction 184, result has 45.4 percent of original size [2021-11-25 18:38:20,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 3739 treesize of output 3807 [2021-11-25 18:39:15,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:15,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:39:15,682 INFO L354 Elim1Store]: treesize reduction 113, result has 64.8 percent of original size [2021-11-25 18:39:15,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 455 treesize of output 608 [2021-11-25 18:40:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:04,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:04,432 INFO L354 Elim1Store]: treesize reduction 27, result has 58.5 percent of original size [2021-11-25 18:40:04,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 178 treesize of output 187 [2021-11-25 18:40:04,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,317 INFO L354 Elim1Store]: treesize reduction 14, result has 54.8 percent of original size [2021-11-25 18:40:05,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 166 [2021-11-25 18:40:05,434 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:05,491 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:05,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:40:05,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:40:05,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2021-11-25 18:40:05,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:05,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:40:05,887 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 18:40:05,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 628 treesize of output 1 [2021-11-25 18:40:06,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:06,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:06,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 147 [2021-11-25 18:40:07,000 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:07,108 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:07,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:40:07,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:07,804 INFO L354 Elim1Store]: treesize reduction 278, result has 0.4 percent of original size [2021-11-25 18:40:07,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 922 treesize of output 866 [2021-11-25 18:40:08,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:40:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 18:40:08,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:08,215 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-25 18:40:08,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 1600 treesize of output 1542 [2021-11-25 18:40:09,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:09,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:09,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:40:09,727 INFO L354 Elim1Store]: treesize reduction 194, result has 0.5 percent of original size [2021-11-25 18:40:09,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 734 treesize of output 670 [2021-11-25 18:40:24,610 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:41:15,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 599 [2021-11-25 18:41:15,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:15,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 147 [2021-11-25 18:41:16,007 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:41:16,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:16,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:16,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:16,734 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 18:41:16,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 18:41:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:16,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:16,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:17,025 INFO L354 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2021-11-25 18:41:17,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 446 treesize of output 398 [2021-11-25 18:41:17,203 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 18:41:17,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:17,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:17,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:41:17,601 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 18:41:17,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 18:42:05,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:05,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:05,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:05,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:05,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 18:42:07,373 INFO L354 Elim1Store]: treesize reduction 616, result has 41.7 percent of original size [2021-11-25 18:42:07,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 6 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 83 case distinctions, treesize of input 226889 treesize of output 218677 [2021-11-25 18:49:06,461 WARN L227 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3464 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)