./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:35:58,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:35:58,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:35:58,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:35:58,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:35:58,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:35:58,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:35:58,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:35:58,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:35:58,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:35:58,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:35:58,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:35:58,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:35:58,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:35:58,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:35:58,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:35:58,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:35:58,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:35:58,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:35:58,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:35:58,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:35:58,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:35:58,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:35:58,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:35:58,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:35:58,468 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:35:58,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:35:58,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:35:58,472 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:35:58,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:35:58,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:35:58,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:35:58,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:35:58,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:35:58,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:35:58,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:35:58,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:35:58,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:35:58,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:35:58,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:35:58,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:35:58,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-23 03:35:58,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:35:58,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:35:58,545 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:35:58,545 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:35:58,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:35:58,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:35:58,547 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:35:58,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:35:58,548 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:35:58,548 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:35:58,550 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:35:58,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:35:58,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:35:58,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:35:58,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:35:58,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:35:58,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:35:58,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:35:58,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:35:58,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:35:58,554 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:35:58,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:35:58,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:35:58,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:35:58,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:35:58,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:35:58,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:35:58,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 03:35:58,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:35:58,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:35:58,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:35:58,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:35:58,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:35:58,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:35:58,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:35:58,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:35:58,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:35:58,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:35:58,562 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:35:58,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:35:58,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:35:58,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:35:58,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:35:58,563 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_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7743788eb05cb3443d5449a0c3250a50955573eb924e62e5cc797e3ef82e3ba3 [2021-11-23 03:35:58,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:35:58,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:35:58,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:35:58,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:35:58,942 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:35:58,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-23 03:35:59,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/data/bb9a09c97/eaccda1f7acf4d64bcdbf2a86370b1d5/FLAG8544bb0b5 [2021-11-23 03:35:59,872 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:35:59,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i [2021-11-23 03:35:59,902 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/data/bb9a09c97/eaccda1f7acf4d64bcdbf2a86370b1d5/FLAG8544bb0b5 [2021-11-23 03:35:59,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/data/bb9a09c97/eaccda1f7acf4d64bcdbf2a86370b1d5 [2021-11-23 03:35:59,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:35:59,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:35:59,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:35:59,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:35:59,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:35:59,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:59" (1/1) ... [2021-11-23 03:35:59,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@233b8a35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:35:59, skipping insertion in model container [2021-11-23 03:35:59,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:35:59" (1/1) ... [2021-11-23 03:36:00,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:36:00,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:36:01,006 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-23 03:36:01,037 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-23 03:36:01,218 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-23 03:36:01,219 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-23 03:36:01,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:36:01,237 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:36:01,274 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44118,44131] [2021-11-23 03:36:01,277 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[44660,44673] [2021-11-23 03:36:01,347 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56247,56260] [2021-11-23 03:36:01,348 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_7fffb9b7-2680-4a70-948a-0e31df97042e/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-1.i[56368,56381] [2021-11-23 03:36:01,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:36:01,449 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:36:01,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01 WrapperNode [2021-11-23 03:36:01,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:36:01,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:36:01,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:36:01,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:36:01,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,678 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-23 03:36:01,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:36:01,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:36:01,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:36:01,680 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:36:01,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:36:01,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:36:01,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:36:01,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:36:01,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (1/1) ... [2021-11-23 03:36:01,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:36:01,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:01,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:36:01,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:36:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:36:01,977 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:36:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:36:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:36:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-23 03:36:01,978 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-23 03:36:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:36:01,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:36:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:36:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:36:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:36:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:36:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-23 03:36:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-23 03:36:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:36:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-23 03:36:01,980 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-23 03:36:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:36:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:36:01,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:36:02,283 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:36:02,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:36:03,581 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:36:04,088 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:36:04,088 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 03:36:04,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:04 BoogieIcfgContainer [2021-11-23 03:36:04,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:36:04,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:36:04,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:36:04,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:36:04,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:35:59" (1/3) ... [2021-11-23 03:36:04,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59082c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:04, skipping insertion in model container [2021-11-23 03:36:04,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:36:01" (2/3) ... [2021-11-23 03:36:04,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59082c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:36:04, skipping insertion in model container [2021-11-23 03:36:04,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:36:04" (3/3) ... [2021-11-23 03:36:04,117 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-1.i [2021-11-23 03:36:04,124 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:36:04,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-23 03:36:04,187 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:36:04,196 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:36:04,201 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-23 03:36:04,235 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) [2021-11-23 03:36:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:36:04,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:04,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:36:04,240 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)] === [2021-11-23 03:36:04,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:04,250 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-23 03:36:04,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:04,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786421406] [2021-11-23 03:36:04,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:04,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:04,429 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:04,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [233062283] [2021-11-23 03:36:04,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:04,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:04,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:04,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:04,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:36:04,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:04,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 03:36:04,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:04,846 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-23 03:36:04,848 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 39 treesize of output 50 [2021-11-23 03:36:04,865 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 50 treesize of output 49 [2021-11-23 03:36:05,005 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 [2021-11-23 03:36:05,136 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 03:36:05,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-11-23 03:36:17,276 WARN L227 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 24 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 03:36:17,408 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:36:17,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2021-11-23 03:36:17,451 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 16 treesize of output 10 [2021-11-23 03:36:17,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:17,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:17,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:17,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786421406] [2021-11-23 03:36:17,484 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:17,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233062283] [2021-11-23 03:36:17,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233062283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:17,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:17,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:36:17,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219612163] [2021-11-23 03:36:17,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:17,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:17,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:17,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:17,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:17,550 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) [2021-11-23 03:36:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:19,372 INFO L93 Difference]: Finished difference Result 318 states and 501 transitions. [2021-11-23 03:36:19,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:36:19,393 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 [2021-11-23 03:36:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:19,408 INFO L225 Difference]: With dead ends: 318 [2021-11-23 03:36:19,409 INFO L226 Difference]: Without dead ends: 154 [2021-11-23 03:36:19,413 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:19,422 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:19,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 55 Unchecked, 1.7s Time] [2021-11-23 03:36:19,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-23 03:36:19,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-23 03:36:19,482 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) [2021-11-23 03:36:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-23 03:36:19,487 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-23 03:36:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:19,488 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-23 03:36:19,488 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) [2021-11-23 03:36:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-23 03:36:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 03:36:19,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:19,490 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:19,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:19,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:19,706 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)] === [2021-11-23 03:36:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:19,707 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-23 03:36:19,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:19,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440144654] [2021-11-23 03:36:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:19,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:19,781 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:19,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827788916] [2021-11-23 03:36:19,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:19,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:19,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:19,786 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:19,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:36:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:20,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:36:20,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:20,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:20,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:20,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440144654] [2021-11-23 03:36:20,121 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:20,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827788916] [2021-11-23 03:36:20,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827788916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:20,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:20,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:36:20,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832384821] [2021-11-23 03:36:20,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:20,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:20,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:20,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:20,127 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) [2021-11-23 03:36:22,610 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:36:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:22,852 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-23 03:36:22,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:36:22,856 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 [2021-11-23 03:36:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:22,861 INFO L225 Difference]: With dead ends: 261 [2021-11-23 03:36:22,861 INFO L226 Difference]: Without dead ends: 259 [2021-11-23 03:36:22,862 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 [2021-11-23 03:36:22,863 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:22,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 03:36:22,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-23 03:36:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-23 03:36:22,916 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) [2021-11-23 03:36:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-23 03:36:22,922 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-23 03:36:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:22,923 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-23 03:36:22,923 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) [2021-11-23 03:36:22,925 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-23 03:36:22,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 03:36:22,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:22,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:36:22,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:23,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-23 03:36:23,154 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)] === [2021-11-23 03:36:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:23,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-23 03:36:23,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:23,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094824710] [2021-11-23 03:36:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:23,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:23,180 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:23,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1201802503] [2021-11-23 03:36:23,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:23,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:23,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:23,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:23,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:36:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:23,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:36:23,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:23,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:23,464 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094824710] [2021-11-23 03:36:23,465 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201802503] [2021-11-23 03:36:23,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201802503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:23,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:23,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:36:23,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424520259] [2021-11-23 03:36:23,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:23,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:23,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:23,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:23,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:23,474 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) [2021-11-23 03:36:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:24,783 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-23 03:36:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:36:24,792 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 [2021-11-23 03:36:24,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:24,797 INFO L225 Difference]: With dead ends: 441 [2021-11-23 03:36:24,797 INFO L226 Difference]: Without dead ends: 439 [2021-11-23 03:36:24,798 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 [2021-11-23 03:36:24,800 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:24,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 03:36:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-23 03:36:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-23 03:36:24,841 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) [2021-11-23 03:36:24,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-23 03:36:24,846 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-23 03:36:24,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:24,846 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-23 03:36:24,847 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) [2021-11-23 03:36:24,847 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-23 03:36:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:36:24,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:24,849 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] [2021-11-23 03:36:24,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:25,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:25,058 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)] === [2021-11-23 03:36:25,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:25,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-23 03:36:25,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:25,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227998242] [2021-11-23 03:36:25,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:25,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:25,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:25,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227998242] [2021-11-23 03:36:25,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227998242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:25,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:25,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:36:25,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583921786] [2021-11-23 03:36:25,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:25,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:36:25,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:25,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:36:25,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:36:25,172 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) [2021-11-23 03:36:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:27,056 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-23 03:36:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:36:27,059 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 [2021-11-23 03:36:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:27,064 INFO L225 Difference]: With dead ends: 682 [2021-11-23 03:36:27,064 INFO L226 Difference]: Without dead ends: 562 [2021-11-23 03:36:27,065 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 [2021-11-23 03:36:27,067 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:27,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 03:36:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-23 03:36:27,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-23 03:36:27,098 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) [2021-11-23 03:36:27,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-23 03:36:27,102 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-23 03:36:27,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:27,102 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-23 03:36:27,102 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) [2021-11-23 03:36:27,103 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-23 03:36:27,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:36:27,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:27,104 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] [2021-11-23 03:36:27,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:36:27,104 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)] === [2021-11-23 03:36:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:27,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-23 03:36:27,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:27,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357661290] [2021-11-23 03:36:27,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:27,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:27,123 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:27,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1705856768] [2021-11-23 03:36:27,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:27,124 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:27,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:27,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:27,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:36:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:27,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:36:27,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:27,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:27,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:27,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357661290] [2021-11-23 03:36:27,399 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:27,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705856768] [2021-11-23 03:36:27,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705856768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:27,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:27,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:36:27,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426389051] [2021-11-23 03:36:27,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:27,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:27,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:27,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:27,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:27,401 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) [2021-11-23 03:36:28,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:28,293 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-23 03:36:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:28,297 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 [2021-11-23 03:36:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:28,301 INFO L225 Difference]: With dead ends: 454 [2021-11-23 03:36:28,302 INFO L226 Difference]: Without dead ends: 453 [2021-11-23 03:36:28,302 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 [2021-11-23 03:36:28,304 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:28,304 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 03:36:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-23 03:36:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-23 03:36:28,357 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) [2021-11-23 03:36:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-23 03:36:28,361 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-23 03:36:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:28,362 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-23 03:36:28,362 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) [2021-11-23 03:36:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-23 03:36:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 03:36:28,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:28,364 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] [2021-11-23 03:36:28,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:28,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:28,584 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)] === [2021-11-23 03:36:28,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:28,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-23 03:36:28,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:28,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375405235] [2021-11-23 03:36:28,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:28,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:28,602 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:28,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [937717512] [2021-11-23 03:36:28,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:28,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:28,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:28,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:28,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:36:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:28,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 03:36:28,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:28,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:28,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:28,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375405235] [2021-11-23 03:36:28,900 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:28,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937717512] [2021-11-23 03:36:28,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937717512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:28,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:28,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:36:28,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041319587] [2021-11-23 03:36:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:28,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:28,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:28,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:28,903 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) [2021-11-23 03:36:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:29,533 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-23 03:36:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:29,538 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 [2021-11-23 03:36:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:29,542 INFO L225 Difference]: With dead ends: 443 [2021-11-23 03:36:29,542 INFO L226 Difference]: Without dead ends: 442 [2021-11-23 03:36:29,543 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 [2021-11-23 03:36:29,544 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:29,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 03:36:29,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-23 03:36:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-23 03:36:29,570 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) [2021-11-23 03:36:29,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-23 03:36:29,574 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-23 03:36:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:29,575 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-23 03:36:29,575 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) [2021-11-23 03:36:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-23 03:36:29,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 03:36:29,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:29,577 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] [2021-11-23 03:36:29,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:29,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:29,790 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)] === [2021-11-23 03:36:29,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-23 03:36:29,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:29,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696730245] [2021-11-23 03:36:29,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:29,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:29,808 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:29,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [165013553] [2021-11-23 03:36:29,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:29,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:29,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:29,830 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:29,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:36:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:29,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:36:30,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:30,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:30,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:36:30,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696730245] [2021-11-23 03:36:30,133 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:30,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165013553] [2021-11-23 03:36:30,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165013553] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:36:30,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:36:30,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:36:30,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093161446] [2021-11-23 03:36:30,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:36:30,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:36:30,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:36:30,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:36:30,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:36:30,136 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) [2021-11-23 03:36:31,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:36:31,133 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-23 03:36:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:36:31,138 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 [2021-11-23 03:36:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:36:31,142 INFO L225 Difference]: With dead ends: 814 [2021-11-23 03:36:31,142 INFO L226 Difference]: Without dead ends: 377 [2021-11-23 03:36:31,145 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 [2021-11-23 03:36:31,146 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:36:31,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 03:36:31,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-23 03:36:31,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-23 03:36:31,190 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) [2021-11-23 03:36:31,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-23 03:36:31,194 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-23 03:36:31,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:36:31,197 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-23 03:36:31,197 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) [2021-11-23 03:36:31,197 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-23 03:36:31,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:36:31,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:36:31,201 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] [2021-11-23 03:36:31,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:31,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 03:36:31,402 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)] === [2021-11-23 03:36:31,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:36:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-23 03:36:31,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:36:31,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225031318] [2021-11-23 03:36:31,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:31,402 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:36:31,426 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:36:31,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086637448] [2021-11-23 03:36:31,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:36:31,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:36:31,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:36:31,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:36:31,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:36:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:36:31,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 03:36:31,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:36:31,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:31,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:36:32,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:36:32,049 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:36:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225031318] [2021-11-23 03:36:32,050 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:36:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086637448] [2021-11-23 03:36:32,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086637448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:36:32,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [498613232] [2021-11-23 03:36:32,072 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-23 03:36:32,072 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:36:32,077 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:36:32,089 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:36:32,090 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:36:32,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,230 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:36:32,231 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 [2021-11-23 03:36:32,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,253 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 [2021-11-23 03:36:32,262 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 29 treesize of output 28 [2021-11-23 03:36:32,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,277 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 [2021-11-23 03:36:32,293 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 [2021-11-23 03:36:32,304 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 [2021-11-23 03:36:32,351 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 [2021-11-23 03:36:32,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,414 INFO L354 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-11-23 03:36:32,415 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 [2021-11-23 03:36:32,462 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 [2021-11-23 03:36:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:36:32,520 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 [2021-11-23 03:36:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,624 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-23 03:36:32,624 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 [2021-11-23 03:36:32,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,647 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 [2021-11-23 03:36:32,667 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 [2021-11-23 03:36:32,794 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 [2021-11-23 03:36:32,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,819 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 208 treesize of output 170 [2021-11-23 03:36:32,871 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:36:32,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:32,950 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 [2021-11-23 03:36:32,997 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 [2021-11-23 03:36:33,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,725 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 [2021-11-23 03:36:33,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,753 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 262 treesize of output 216 [2021-11-23 03:36:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,781 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 249 treesize of output 209 [2021-11-23 03:36:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 64 [2021-11-23 03:36:33,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:33,964 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 [2021-11-23 03:36:34,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,049 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 [2021-11-23 03:36:34,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:36:34,082 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 326 treesize of output 276 [2021-11-23 03:36:34,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 03:36:34,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-23 03:36:34,314 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Should have been eliminated by DER at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:340) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:903) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:865) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:783) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:425) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:162) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:243) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:233) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:119) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 03:36:34,318 INFO L158 Benchmark]: Toolchain (without parser) took 34336.21ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 101.6MB in the beginning and 61.1MB in the end (delta: 40.5MB). Peak memory consumption was 101.0MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,319 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 140.5MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 03:36:34,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.97ms. Allocated memory is still 140.5MB. Free memory was 101.3MB in the beginning and 82.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.77ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 75.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,320 INFO L158 Benchmark]: Boogie Preprocessor took 182.18ms. Allocated memory is still 140.5MB. Free memory was 75.5MB in the beginning and 68.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,320 INFO L158 Benchmark]: RCFGBuilder took 2237.91ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 116.7kB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,321 INFO L158 Benchmark]: TraceAbstraction took 30213.26ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 67.2MB in the beginning and 61.1MB in the end (delta: 6.0MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. [2021-11-23 03:36:34,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 140.5MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1465.97ms. Allocated memory is still 140.5MB. Free memory was 101.3MB in the beginning and 82.9MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 227.77ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 75.5MB in the end (delta: 7.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 182.18ms. Allocated memory is still 140.5MB. Free memory was 75.5MB in the beginning and 68.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2237.91ms. Allocated memory is still 140.5MB. Free memory was 68.2MB in the beginning and 68.1MB in the end (delta: 116.7kB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30213.26ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 67.2MB in the beginning and 61.1MB in the end (delta: 6.0MB). Peak memory consumption was 67.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Should have been eliminated by DER de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Should have been eliminated by DER: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.DerPreprocessor.(DerPreprocessor.java:108) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 03:36:34,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7fffb9b7-2680-4a70-948a-0e31df97042e/bin/utaipan-EQgc7hIp5V/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Should have been eliminated by DER