./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- 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-2329fc7 [2022-12-14 12:46:31,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:46:31,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:46:31,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:46:31,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:46:31,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:46:31,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:46:31,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:46:31,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:46:31,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:46:31,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:46:31,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:46:31,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:46:31,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:46:31,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:46:31,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:46:31,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:46:31,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:46:31,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:46:31,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:46:31,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:46:31,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:46:31,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:46:31,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:46:31,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:46:31,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:46:31,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:46:31,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:46:31,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:46:31,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:46:31,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:46:31,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:46:31,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:46:31,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:46:31,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:46:31,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:46:31,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:46:31,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:46:31,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:46:31,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:46:31,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:46:31,792 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:46:31,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:46:31,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:46:31,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:46:31,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:46:31,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:46:31,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:46:31,815 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:46:31,815 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:46:31,815 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:46:31,815 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:46:31,815 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:46:31,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:46:31,816 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:46:31,816 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:46:31,816 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:46:31,816 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:46:31,817 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:46:31,817 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:46:31,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:46:31,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:46:31,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:46:31,819 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:46:31,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:46:31,819 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:46:31,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:46:31,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:46:31,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:46:31,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:46:31,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:46:31,820 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:46:31,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:46:31,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:46:31,821 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:46:31,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:46:31,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:46:31,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:46:31,822 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2022-12-14 12:46:32,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:46:32,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:46:32,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:46:32,021 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:46:32,021 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:46:32,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-12-14 12:46:34,602 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:46:34,841 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:46:34,841 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-12-14 12:46:34,854 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/data/72e643866/d6b3b3ac2f824aa287538b9130dc56d6/FLAG0ea81a4ec [2022-12-14 12:46:34,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/data/72e643866/d6b3b3ac2f824aa287538b9130dc56d6 [2022-12-14 12:46:34,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:46:34,870 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:46:34,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:46:34,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:46:34,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:46:34,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:46:34" (1/1) ... [2022-12-14 12:46:34,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2355481a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:34, skipping insertion in model container [2022-12-14 12:46:34,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:46:34" (1/1) ... [2022-12-14 12:46:34,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:46:34,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:46:35,249 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-12-14 12:46:35,361 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:46:35,364 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-12-14 12:46:35,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:46:35,389 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:46:35,421 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-12-14 12:46:35,487 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 12:46:35,489 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_b2d5eda4-4305-43d4-9034-8c0fa1375249/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-12-14 12:46:35,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:46:35,532 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:46:35,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35 WrapperNode [2022-12-14 12:46:35,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:46:35,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:46:35,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:46:35,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:46:35,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,658 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 12:46:35,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:46:35,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:46:35,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:46:35,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:46:35,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:46:35,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:46:35,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:46:35,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:46:35,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (1/1) ... [2022-12-14 12:46:35,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:46:35,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:35,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:46:35,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:46:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:46:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 12:46:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 12:46:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:46:35,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:46:35,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:46:35,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:46:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:46:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:46:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:46:36,017 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:46:36,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:46:37,419 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:46:37,817 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:46:37,817 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-12-14 12:46:37,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:46:37 BoogieIcfgContainer [2022-12-14 12:46:37,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:46:37,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:46:37,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:46:37,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:46:37,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:46:34" (1/3) ... [2022-12-14 12:46:37,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:46:37, skipping insertion in model container [2022-12-14 12:46:37,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:46:35" (2/3) ... [2022-12-14 12:46:37,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46cb802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:46:37, skipping insertion in model container [2022-12-14 12:46:37,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:46:37" (3/3) ... [2022-12-14 12:46:37,825 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2022-12-14 12:46:37,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:46:37,839 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:46:37,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:46:37,879 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;@5603b6ed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:46:37,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:46:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:46:37,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 12:46:37,891 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:37,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 12:46:37,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:37,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:37,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-12-14 12:46:37,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:37,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285711858] [2022-12-14 12:46:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:37,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:38,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285711858] [2022-12-14 12:46:38,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 12:46:38,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21797585] [2022-12-14 12:46:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:38,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:38,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:38,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:46:38,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:46:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:38,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 12:46:38,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:46:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:38,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:46:38,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21797585] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:38,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:38,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:46:38,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075257020] [2022-12-14 12:46:38,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:38,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:46:38,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:46:38,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:46:38,280 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 12:46:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:38,896 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-12-14 12:46:38,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:46:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-12-14 12:46:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:38,907 INFO L225 Difference]: With dead ends: 329 [2022-12-14 12:46:38,908 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 12:46:38,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:46:38,912 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:38,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 12:46:38,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 12:46:38,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 12:46:38,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:46:38,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-12-14 12:46:38,943 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-12-14 12:46:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:38,944 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-12-14 12:46:38,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-14 12:46:38,944 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-12-14 12:46:38,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 12:46:38,945 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:38,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:38,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:46:39,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-14 12:46:39,148 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:39,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-12-14 12:46:39,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:39,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584048159] [2022-12-14 12:46:39,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:39,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:39,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:39,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584048159] [2022-12-14 12:46:39,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-12-14 12:46:39,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985945234] [2022-12-14 12:46:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:39,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:39,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:39,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:46:39,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:46:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:39,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:46:39,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:46:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:39,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:46:39,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985945234] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:39,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:39,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:46:39,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213777333] [2022-12-14 12:46:39,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:39,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:46:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:39,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:46:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:39,404 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-12-14 12:46:40,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:40,300 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-12-14 12:46:40,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:46:40,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-12-14 12:46:40,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:40,304 INFO L225 Difference]: With dead ends: 342 [2022-12-14 12:46:40,304 INFO L226 Difference]: Without dead ends: 290 [2022-12-14 12:46:40,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:40,305 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:40,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 12:46:40,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-12-14 12:46:40,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-12-14 12:46:40,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:46:40,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-12-14 12:46:40,316 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-12-14 12:46:40,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:40,316 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-12-14 12:46:40,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-12-14 12:46:40,316 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-12-14 12:46:40,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-14 12:46:40,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:40,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:40,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 12:46:40,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:40,519 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:40,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-12-14 12:46:40,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:40,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896446764] [2022-12-14 12:46:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:40,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:40,739 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:46:40,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1119442620] [2022-12-14 12:46:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:40,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:40,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:46:40,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:46:40,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:46:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:41,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:46:41,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:46:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:41,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:46:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:46:41,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896446764] [2022-12-14 12:46:41,751 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:46:41,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119442620] [2022-12-14 12:46:41,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119442620] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:46:41,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [217528296] [2022-12-14 12:46:41,767 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-12-14 12:46:41,767 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:46:41,770 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:46:41,773 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:46:41,774 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:46:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,868 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:46:41,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-12-14 12:46:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,891 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 12:46:41,892 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 [2022-12-14 12:46:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,934 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 22 treesize of output 7 [2022-12-14 12:46:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,965 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:46:41,965 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 [2022-12-14 12:46:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,979 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 [2022-12-14 12:46:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:41,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:46:41,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 12:46:42,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 12:46:42,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 12:46:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 12:46:42,438 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 [2022-12-14 12:46:42,456 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 [2022-12-14 12:46:42,813 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 [2022-12-14 12:46:42,826 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 [2022-12-14 12:46:42,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 12:46:42,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:46:42,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 12:46:42,929 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:46:58,943 WARN L233 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:46:58,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [217528296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:58,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:46:58,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 12:46:58,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409124816] [2022-12-14 12:46:58,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:58,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 12:46:58,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:58,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 12:46:58,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 12:46:58,948 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-12-14 12:47:02,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:47:04,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:47:06,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:47:10,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 12:47:10,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:47:10,440 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-12-14 12:47:10,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:47:10,441 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-12-14 12:47:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:47:10,442 INFO L225 Difference]: With dead ends: 313 [2022-12-14 12:47:10,442 INFO L226 Difference]: Without dead ends: 164 [2022-12-14 12:47:10,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 12:47:10,443 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:47:10,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 12:47:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-12-14 12:47:10,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-12-14 12:47:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 12:47:10,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 12:47:10,463 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-12-14 12:47:10,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:47:10,463 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 12:47:10,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-12-14 12:47:10,464 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 12:47:10,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-14 12:47:10,465 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:47:10,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:47:10,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 12:47:10,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:47:10,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:47:10,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:47:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-12-14 12:47:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:47:10,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659452590] [2022-12-14 12:47:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:47:10,782 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:47:10,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088084889] [2022-12-14 12:47:10,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:10,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:47:10,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:47:10,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:47:10,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:47:11,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:47:11,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:47:11,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:47:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:47:11,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:47:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 12:47:11,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:47:11,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659452590] [2022-12-14 12:47:11,747 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:47:11,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088084889] [2022-12-14 12:47:11,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088084889] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:47:11,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [165407168] [2022-12-14 12:47:11,751 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 12:47:11,751 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:47:11,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:47:11,752 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:47:11,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:47:11,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,830 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 12:47:11,830 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 [2022-12-14 12:47:11,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,840 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 [2022-12-14 12:47:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,881 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:47:11,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 12:47:11,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,896 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 22 treesize of output 7 [2022-12-14 12:47:11,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,932 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:47:11,932 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 [2022-12-14 12:47:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 12:47:11,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:11,956 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:47:11,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 12:47:12,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 12:47:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 12:47:12,367 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 [2022-12-14 12:47:12,384 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 [2022-12-14 12:47:12,414 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 [2022-12-14 12:47:12,425 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 [2022-12-14 12:47:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:12,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:12,546 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 [2022-12-14 12:47:12,569 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 [2022-12-14 12:47:12,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,612 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 12:47:12,613 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 [2022-12-14 12:47:12,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,663 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 12:47:12,664 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 [2022-12-14 12:47:12,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:12,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:13,123 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 [2022-12-14 12:47:13,135 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 [2022-12-14 12:47:13,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 12:47:13,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 12:47:13,229 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 [2022-12-14 12:47:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:13,333 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 [2022-12-14 12:47:13,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:47:13,422 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 [2022-12-14 12:47:13,444 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 [2022-12-14 12:47:13,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,501 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 12:47:13,501 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 [2022-12-14 12:47:13,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:47:13,567 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 12:47:13,568 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 [2022-12-14 12:47:13,820 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-12-14 12:47:13,897 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:47:21,765 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:29,205 WARN L233 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:39,010 WARN L233 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:47:54,657 WARN L233 SmtUtils]: Spent 9.52s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:07,908 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 12:48:08,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [165407168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:48:08,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 12:48:08,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 12:48:08,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105192512] [2022-12-14 12:48:08,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:48:08,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 12:48:08,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:48:08,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 12:48:08,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 12:48:08,941 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:48:12,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:14,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:16,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:18,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:20,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:22,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:24,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:26,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:28,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:33,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 12:48:34,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:48:34,740 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-12-14 12:48:34,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 12:48:34,741 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-12-14 12:48:34,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:48:34,742 INFO L225 Difference]: With dead ends: 315 [2022-12-14 12:48:34,742 INFO L226 Difference]: Without dead ends: 166 [2022-12-14 12:48:34,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 56.1s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-12-14 12:48:34,743 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-12-14 12:48:34,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 24.7s Time] [2022-12-14 12:48:34,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-14 12:48:34,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-14 12:48:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 12:48:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-12-14 12:48:34,758 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-12-14 12:48:34,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:48:34,758 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-12-14 12:48:34,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:48:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-12-14 12:48:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-14 12:48:34,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:48:34,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:48:34,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 12:48:34,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:48:34,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:48:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:48:34,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-12-14 12:48:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:48:34,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829474317] [2022-12-14 12:48:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:48:35,087 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 12:48:35,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778438440] [2022-12-14 12:48:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:35,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:48:35,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:48:35,088 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:48:35,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2d5eda4-4305-43d4-9034-8c0fa1375249/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:48:35,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:35,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 12:48:35,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:48:35,811 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 12:48:35,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:48:35,867 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 12:48:35,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:48:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829474317] [2022-12-14 12:48:35,867 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 12:48:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778438440] [2022-12-14 12:48:35,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778438440] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:48:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1910215982] [2022-12-14 12:48:35,869 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-12-14 12:48:35,869 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:48:35,870 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:48:35,870 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:48:35,870 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:48:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:35,955 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 12:48:35,955 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 [2022-12-14 12:48:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:35,963 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 [2022-12-14 12:48:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:35,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:48:35,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:35,990 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 12:48:35,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 12:48:35,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,018 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 12:48:36,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-12-14 12:48:36,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,034 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 22 treesize of output 7 [2022-12-14 12:48:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,046 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 22 treesize of output 7 [2022-12-14 12:48:36,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,076 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 12:48:36,076 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 [2022-12-14 12:48:36,274 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 [2022-12-14 12:48:36,285 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 [2022-12-14 12:48:36,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 12:48:36,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 12:48:36,378 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 [2022-12-14 12:48:36,389 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 [2022-12-14 12:48:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:48:36,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:48:36,496 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 [2022-12-14 12:48:36,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,541 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 12:48:36,541 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 [2022-12-14 12:48:36,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,594 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 12:48:36,594 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 [2022-12-14 12:48:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 12:48:36,660 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 [2022-12-14 12:48:36,761 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 [2022-12-14 12:48:36,763 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 13 treesize of output 9 [2022-12-14 12:48:36,767 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 [2022-12-14 12:48:36,800 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 12:48:36,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-12-14 12:48:36,820 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-12-14 12:48:36,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-12-14 12:48:36,838 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 12:48:36,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-12-14 12:48:36,863 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 [2022-12-14 12:48:36,868 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 [2022-12-14 12:48:36,872 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 [2022-12-14 12:48:36,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:36,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 12:48:36,973 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 [2022-12-14 12:48:36,991 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 [2022-12-14 12:48:37,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:48:37,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 12:48:37,157 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 [2022-12-14 12:48:37,173 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 [2022-12-14 12:48:38,274 INFO L217 Elim1Store]: Index analysis took 862 ms [2022-12-14 12:48:44,028 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 12:48:44,029 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-12-14 12:48:44,029 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 10752723 treesize of output 10752742 [2022-12-14 12:48:45,630 INFO L217 Elim1Store]: Index analysis took 1411 ms [2022-12-14 12:48:46,120 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-12-14 12:48:46,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-12-14 12:51:27,044 WARN L233 SmtUtils]: Spent 2.68m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 12:51:27,044 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-12-14 12:51:27,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-12-14 12:51:27,442 INFO L217 Elim1Store]: Index analysis took 159 ms [2022-12-14 12:52:44,508 WARN L233 SmtUtils]: Spent 1.28m 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) [2022-12-14 12:52:44,509 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 12:52:44,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-12-14 12:52:48,590 INFO L217 Elim1Store]: Index analysis took 3203 ms [2022-12-14 12:59:57,862 WARN L233 SmtUtils]: Spent 7.15m on a formula simplification. DAG size of input: 538 DAG size of output: 282 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 12:59:57,863 INFO L321 Elim1Store]: treesize reduction 15914, result has 26.5 percent of original size [2022-12-14 12:59:57,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 12 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 12 new quantified variables, introduced 48 case distinctions, treesize of input 7608 treesize of output 21467