./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW --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 d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:51:13,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:51:13,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:51:13,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:51:13,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:51:13,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:51:13,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:51:13,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:51:13,546 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:51:13,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:51:13,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:51:13,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:51:13,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:51:13,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:51:13,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:51:13,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:51:13,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:51:13,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:51:13,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:51:13,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:51:13,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:51:13,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:51:13,562 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:51:13,563 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:51:13,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:51:13,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:51:13,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:51:13,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:51:13,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:51:13,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:51:13,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:51:13,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:51:13,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:51:13,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:51:13,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:51:13,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:51:13,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:51:13,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:51:13,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:51:13,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:51:13,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:51:13,577 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-23 14:51:13,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:51:13,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:51:13,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:51:13,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:51:13,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:51:13,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:51:13,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:51:13,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:51:13,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:51:13,602 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:51:13,602 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:51:13,603 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:51:13,603 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:51:13,603 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:51:13,603 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:51:13,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:51:13,604 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:51:13,604 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:51:13,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:51:13,605 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:51:13,605 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:51:13,605 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:51:13,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:51:13,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:51:13,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:51:13,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:51:13,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:51:13,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:51:13,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:51:13,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:51:13,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:51:13,608 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:51:13,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:51:13,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:51:13,608 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:51:13,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:51:13,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:51:13,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:51:13,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d619c50f205026415119876db06c9bf079f51316bee7c051af8e3a06a37e393d [2022-11-23 14:51:13,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:51:13,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:51:13,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:51:13,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:51:13,941 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:51:13,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2022-11-23 14:51:17,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:51:17,434 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:51:17,435 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i [2022-11-23 14:51:17,458 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/data/82f06d9b5/eade774787c549ae94bd329981e83caf/FLAGf2def9b94 [2022-11-23 14:51:17,479 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/data/82f06d9b5/eade774787c549ae94bd329981e83caf [2022-11-23 14:51:17,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:51:17,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:51:17,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:51:17,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:51:17,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:51:17,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:17" (1/1) ... [2022-11-23 14:51:17,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e1ea34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:17, skipping insertion in model container [2022-11-23 14:51:17,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:51:17" (1/1) ... [2022-11-23 14:51:17,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:51:17,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:51:18,160 WARN L237 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_24f75374-a125-48e4-9755-5a4558647ed6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2022-11-23 14:51:18,307 WARN L237 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_24f75374-a125-48e4-9755-5a4558647ed6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2022-11-23 14:51:18,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:51:18,356 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:51:18,396 WARN L237 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_24f75374-a125-48e4-9755-5a4558647ed6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[37019,37032] [2022-11-23 14:51:18,450 WARN L237 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_24f75374-a125-48e4-9755-5a4558647ed6/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test2-2.i[47352,47365] [2022-11-23 14:51:18,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:51:18,500 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:51:18,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18 WrapperNode [2022-11-23 14:51:18,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:51:18,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:51:18,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:51:18,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:51:18,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,616 INFO L138 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1043 [2022-11-23 14:51:18,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:51:18,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:51:18,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:51:18,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:51:18,629 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,743 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:51:18,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:51:18,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:51:18,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:51:18,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (1/1) ... [2022-11-23 14:51:18,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:51:18,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:18,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:51:18,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:51:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:51:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:51:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:51:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:51:18,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:51:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:51:18,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:51:18,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:51:18,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:51:19,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:51:19,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:51:20,753 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:51:21,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:51:21,204 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-11-23 14:51:21,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:21 BoogieIcfgContainer [2022-11-23 14:51:21,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:51:21,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:51:21,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:51:21,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:51:21,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:51:17" (1/3) ... [2022-11-23 14:51:21,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3865b155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:21, skipping insertion in model container [2022-11-23 14:51:21,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:51:18" (2/3) ... [2022-11-23 14:51:21,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3865b155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:51:21, skipping insertion in model container [2022-11-23 14:51:21,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:51:21" (3/3) ... [2022-11-23 14:51:21,217 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test2-2.i [2022-11-23 14:51:21,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:51:21,238 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 14:51:21,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:51:21,322 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7730ffb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:51:21,322 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 14:51:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 114 states have (on average 1.8157894736842106) internal successors, (207), 127 states have internal predecessors, (207), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 14:51:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:51:21,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:21,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:51:21,336 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:51:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash 26494797, now seen corresponding path program 1 times [2022-11-23 14:51:21,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:21,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107851893] [2022-11-23 14:51:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:21,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:21,484 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:51:21,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [971920812] [2022-11-23 14:51:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:21,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:21,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:21,489 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:51:21,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:51:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:21,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 14:51:21,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:51:21,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-23 14:51:21,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-23 14:51:21,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:51:21,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-23 14:51:21,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:51:21,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:51:21,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:21,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107851893] [2022-11-23 14:51:21,873 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:51:21,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971920812] [2022-11-23 14:51:21,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971920812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:21,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:51:21,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:51:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716654867] [2022-11-23 14:51:21,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:21,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:51:21,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:21,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:51:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:51:21,924 INFO L87 Difference]: Start difference. First operand has 133 states, 114 states have (on average 1.8157894736842106) internal successors, (207), 127 states have internal predecessors, (207), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-11-23 14:51:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:23,559 INFO L93 Difference]: Finished difference Result 339 states and 578 transitions. [2022-11-23 14:51:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:51:23,564 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 [2022-11-23 14:51:23,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:23,572 INFO L225 Difference]: With dead ends: 339 [2022-11-23 14:51:23,573 INFO L226 Difference]: Without dead ends: 187 [2022-11-23 14:51:23,575 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:51:23,578 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 78 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:23,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 360 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-23 14:51:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-23 14:51:23,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2022-11-23 14:51:23,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 115 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 14:51:23,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2022-11-23 14:51:23,656 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 4 [2022-11-23 14:51:23,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:23,658 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2022-11-23 14:51:23,659 INFO L496 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) [2022-11-23 14:51:23,660 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2022-11-23 14:51:23,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 14:51:23,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:23,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:51:23,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:51:23,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:51:23,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:51:23,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:23,871 INFO L85 PathProgramCache]: Analyzing trace with hash -137572903, now seen corresponding path program 1 times [2022-11-23 14:51:23,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:23,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359941840] [2022-11-23 14:51:23,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:23,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:24,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:51:24,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:24,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359941840] [2022-11-23 14:51:24,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359941840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:24,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:51:24,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:51:24,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195084349] [2022-11-23 14:51:24,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:24,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:51:24,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:24,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:51:24,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:51:24,403 INFO L87 Difference]: Start difference. First operand 121 states and 147 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-23 14:51:26,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:51:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:27,846 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-11-23 14:51:27,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:51:27,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-23 14:51:27,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:27,855 INFO L225 Difference]: With dead ends: 230 [2022-11-23 14:51:27,855 INFO L226 Difference]: Without dead ends: 174 [2022-11-23 14:51:27,856 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:51:27,857 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:27,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-23 14:51:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-23 14:51:27,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 121. [2022-11-23 14:51:27,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 115 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-23 14:51:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-11-23 14:51:27,869 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 20 [2022-11-23 14:51:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:27,869 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-11-23 14:51:27,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-23 14:51:27,870 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-11-23 14:51:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 14:51:27,871 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:27,871 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:51:27,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:51:27,872 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:51:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:27,872 INFO L85 PathProgramCache]: Analyzing trace with hash -909457075, now seen corresponding path program 1 times [2022-11-23 14:51:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:27,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480738354] [2022-11-23 14:51:27,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:27,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:28,007 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:51:28,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150899507] [2022-11-23 14:51:28,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:28,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:28,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:28,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:51:28,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:51:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:28,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:51:28,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:51:28,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:51:28,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:51:28,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:28,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480738354] [2022-11-23 14:51:28,950 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:51:28,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150899507] [2022-11-23 14:51:28,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150899507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:28,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:51:28,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:51:28,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799181860] [2022-11-23 14:51:28,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:28,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:51:28,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:28,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:51:28,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:51:28,953 INFO L87 Difference]: Start difference. First operand 121 states and 146 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) [2022-11-23 14:51:30,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:51:31,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:31,319 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2022-11-23 14:51:31,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:51:31,325 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 [2022-11-23 14:51:31,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:31,326 INFO L225 Difference]: With dead ends: 288 [2022-11-23 14:51:31,326 INFO L226 Difference]: Without dead ends: 172 [2022-11-23 14:51:31,327 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:51:31,328 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:31,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 256 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-23 14:51:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-23 14:51:31,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2022-11-23 14:51:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 162 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 14:51:31,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2022-11-23 14:51:31,344 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 28 [2022-11-23 14:51:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:31,345 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2022-11-23 14:51:31,345 INFO L496 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) [2022-11-23 14:51:31,345 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2022-11-23 14:51:31,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-23 14:51:31,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:31,347 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:51:31,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:51:31,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:31,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:51:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:31,557 INFO L85 PathProgramCache]: Analyzing trace with hash 2014288859, now seen corresponding path program 1 times [2022-11-23 14:51:31,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:31,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804314724] [2022-11-23 14:51:31,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:31,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:31,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:51:31,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585190355] [2022-11-23 14:51:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:31,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:31,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:31,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:51:31,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:51:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:51:42,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 14:51:42,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:51:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:51:42,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:51:42,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:51:42,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804314724] [2022-11-23 14:51:42,249 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:51:42,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585190355] [2022-11-23 14:51:42,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585190355] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:51:42,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:51:42,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:51:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792979457] [2022-11-23 14:51:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:51:42,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:51:42,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:51:42,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:51:42,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:51:42,251 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:51:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:51:44,258 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2022-11-23 14:51:44,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:51:44,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2022-11-23 14:51:44,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:51:44,265 INFO L225 Difference]: With dead ends: 320 [2022-11-23 14:51:44,265 INFO L226 Difference]: Without dead ends: 170 [2022-11-23 14:51:44,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:51:44,267 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:51:44,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 377 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-23 14:51:44,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-23 14:51:44,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-23 14:51:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 164 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-23 14:51:44,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2022-11-23 14:51:44,287 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 41 [2022-11-23 14:51:44,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:51:44,295 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2022-11-23 14:51:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:51:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2022-11-23 14:51:44,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-23 14:51:44,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:51:44,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:51:44,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:51:44,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:44,515 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 14:51:44,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:51:44,515 INFO L85 PathProgramCache]: Analyzing trace with hash -119622781, now seen corresponding path program 1 times [2022-11-23 14:51:44,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:51:44,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891989853] [2022-11-23 14:51:44,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:51:44,573 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:51:44,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1925632380] [2022-11-23 14:51:44,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:51:44,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:51:44,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:51:44,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:51:44,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24f75374-a125-48e4-9755-5a4558647ed6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:52:19,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:52:19,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 14:52:19,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:52:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:52:19,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:52:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:52:19,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:52:19,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891989853] [2022-11-23 14:52:19,786 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:52:19,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925632380] [2022-11-23 14:52:19,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925632380] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:52:19,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [410368944] [2022-11-23 14:52:19,815 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-23 14:52:19,816 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:52:19,820 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:52:19,826 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:52:19,826 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:52:19,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:19,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-23 14:52:19,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:52:19,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:19,939 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:52:19,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-23 14:52:19,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:19,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-23 14:52:19,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 [2022-11-23 14:52:19,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-23 14:52:20,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,016 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:52:20,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2022-11-23 14:52:20,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,065 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:52:20,066 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:52:20,080 INFO L350 Elim1Store]: Elim1 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 [2022-11-23 14:52:20,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-23 14:52:20,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:52:20,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2022-11-23 14:52:20,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-23 14:52:20,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:52:20,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-23 14:52:20,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-23 14:52:20,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9896993 treesize of output 5376298 [2022-11-23 14:52:20,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:52:20,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-23 14:52:20,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:20,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:52:21,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:52:21,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:52:21,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-23 14:52:21,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,246 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:52:21,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-23 14:52:21,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,346 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:52:21,347 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 85 [2022-11-23 14:52:21,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-23 14:52:21,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:52:21,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:52:21,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:52:21,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:52:21,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:52:21,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 14:52:21,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:52:21,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-23 14:52:21,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-23 14:52:21,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:52:21,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:21,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 14:52:21,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:52:22,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:52:22,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-23 14:52:22,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-23 14:52:22,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-23 14:52:23,083 INFO L217 Elim1Store]: Index analysis took 599 ms [2022-11-23 14:52:26,279 INFO L321 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2022-11-23 14:52:26,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-23 14:52:28,223 INFO L217 Elim1Store]: Index analysis took 1785 ms [2022-11-23 14:52:31,415 INFO L321 Elim1Store]: treesize reduction 206, result has 11.2 percent of original size [2022-11-23 14:52:31,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519780 [2022-11-23 14:52:38,187 WARN L233 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:52:38,188 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-23 14:52:38,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-23 14:53:00,922 WARN L233 SmtUtils]: Spent 22.55s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:53:00,923 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:53:00,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1834 [2022-11-23 14:53:01,771 INFO L217 Elim1Store]: Index analysis took 604 ms [2022-11-23 14:53:19,558 WARN L233 SmtUtils]: Spent 17.42s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:53:19,559 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-23 14:53:19,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-23 14:53:20,999 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-23 14:53:21,499 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-23 14:53:21,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-23 14:53:21,627 INFO L350 Elim1Store]: Elim1 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 7 treesize of output 3 [2022-11-23 14:53:22,177 INFO L217 Elim1Store]: Index analysis took 223 ms [2022-11-23 14:53:23,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-23 14:53:23,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-23 14:53:24,620 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 14:53:24,710 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-23 14:53:30,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:53:30,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2022-11-23 14:53:32,705 INFO L217 Elim1Store]: Index analysis took 702 ms