./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e45b14428dafe2f20aeac8c38d2592befc15b6791b0365935474ded4fd47d0f2 --- 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 10:22:01,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:22:01,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:22:01,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:22:01,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:22:01,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:22:01,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:22:01,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:22:01,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:22:01,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:22:01,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:22:01,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:22:01,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:22:01,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:22:01,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:22:01,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:22:01,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:22:01,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:22:01,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:22:01,711 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:22:01,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:22:01,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:22:01,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:22:01,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:22:01,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:22:01,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:22:01,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:22:01,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:22:01,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:22:01,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:22:01,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:22:01,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:22:01,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:22:01,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:22:01,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:22:01,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:22:01,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:22:01,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:22:01,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:22:01,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:22:01,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:22:01,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2022-12-14 10:22:01,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:22:01,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:22:01,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:22:01,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:22:01,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:22:01,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:22:01,742 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:22:01,742 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:22:01,742 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:22:01,742 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:22:01,743 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:22:01,743 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:22:01,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 10:22:01,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 10:22:01,744 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:22:01,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:22:01,745 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:22:01,745 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:22:01,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:22:01,746 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:22:01,746 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e45b14428dafe2f20aeac8c38d2592befc15b6791b0365935474ded4fd47d0f2 [2022-12-14 10:22:01,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:22:01,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:22:01,935 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:22:01,936 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:22:01,936 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:22:01,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/sll-sorted-1.i [2022-12-14 10:22:04,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:22:04,835 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:22:04,835 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i [2022-12-14 10:22:04,845 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/data/ca792d455/85a60f4ac8c442beaa4aa2b5fa782f38/FLAG50e641332 [2022-12-14 10:22:04,858 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/data/ca792d455/85a60f4ac8c442beaa4aa2b5fa782f38 [2022-12-14 10:22:04,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:22:04,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:22:04,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:22:04,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:22:04,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:22:04,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:22:04" (1/1) ... [2022-12-14 10:22:04,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65902d35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:04, skipping insertion in model container [2022-12-14 10:22:04,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:22:04" (1/1) ... [2022-12-14 10:22:04,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:22:04,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:22:05,120 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22317,22330] [2022-12-14 10:22:05,126 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22547,22560] [2022-12-14 10:22:05,130 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22877,22890] [2022-12-14 10:22:05,131 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22941,22954] [2022-12-14 10:22:05,132 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[23072,23085] [2022-12-14 10:22:05,133 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[23136,23149] [2022-12-14 10:22:05,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:22:05,147 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:22:05,177 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22317,22330] [2022-12-14 10:22:05,179 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22547,22560] [2022-12-14 10:22:05,182 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22877,22890] [2022-12-14 10:22:05,183 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[22941,22954] [2022-12-14 10:22:05,185 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[23072,23085] [2022-12-14 10:22:05,185 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_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/sv-benchmarks/c/forester-heap/sll-sorted-1.i[23136,23149] [2022-12-14 10:22:05,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:22:05,206 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:22:05,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05 WrapperNode [2022-12-14 10:22:05,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:22:05,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:22:05,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:22:05,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:22:05,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,246 INFO L138 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 189 [2022-12-14 10:22:05,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:22:05,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:22:05,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:22:05,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:22:05,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,274 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:22:05,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:22:05,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:22:05,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:22:05,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (1/1) ... [2022-12-14 10:22:05,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:22:05,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:22:05,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:22:05,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:22:05,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:22:05,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:22:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:22:05,422 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:22:05,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:22:05,791 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:22:05,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:22:05,850 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-12-14 10:22:05,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:22:05 BoogieIcfgContainer [2022-12-14 10:22:05,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:22:05,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:22:05,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:22:05,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:22:05,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:22:04" (1/3) ... [2022-12-14 10:22:05,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6295ae91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:22:05, skipping insertion in model container [2022-12-14 10:22:05,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:22:05" (2/3) ... [2022-12-14 10:22:05,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6295ae91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:22:05, skipping insertion in model container [2022-12-14 10:22:05,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:22:05" (3/3) ... [2022-12-14 10:22:05,861 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-sorted-1.i [2022-12-14 10:22:05,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:22:05,880 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2022-12-14 10:22:05,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:22:05,918 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@642ca912, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:22:05,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2022-12-14 10:22:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 136 states have internal predecessors, (168), 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 10:22:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 10:22:05,925 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:05,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 10:22:05,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:05,929 INFO L85 PathProgramCache]: Analyzing trace with hash 11598, now seen corresponding path program 1 times [2022-12-14 10:22:05,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:05,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680150441] [2022-12-14 10:22:05,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:05,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:06,072 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 10:22:06,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:06,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680150441] [2022-12-14 10:22:06,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680150441] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:06,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:06,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:22:06,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800536684] [2022-12-14 10:22:06,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:06,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:06,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:06,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:06,107 INFO L87 Difference]: Start difference. First operand has 137 states, 68 states have (on average 2.4705882352941178) internal successors, (168), 136 states have internal predecessors, (168), 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) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 10:22:06,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:06,224 INFO L93 Difference]: Finished difference Result 139 states and 148 transitions. [2022-12-14 10:22:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 10:22:06,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:06,234 INFO L225 Difference]: With dead ends: 139 [2022-12-14 10:22:06,234 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 10:22:06,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 10:22:06,239 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 131 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:06,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 81 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:06,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 10:22:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-12-14 10:22:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 68 states have (on average 2.1029411764705883) internal successors, (143), 133 states have internal predecessors, (143), 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 10:22:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 143 transitions. [2022-12-14 10:22:06,274 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 143 transitions. Word has length 2 [2022-12-14 10:22:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:06,274 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 143 transitions. [2022-12-14 10:22:06,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 10:22:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 143 transitions. [2022-12-14 10:22:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 10:22:06,275 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:06,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 10:22:06,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:22:06,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash 11599, now seen corresponding path program 1 times [2022-12-14 10:22:06,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:06,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187907545] [2022-12-14 10:22:06,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:06,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:06,351 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 10:22:06,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:06,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187907545] [2022-12-14 10:22:06,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187907545] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:06,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:06,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:22:06,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270480907] [2022-12-14 10:22:06,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:06,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:06,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:06,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:06,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:06,355 INFO L87 Difference]: Start difference. First operand 134 states and 143 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 10:22:06,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:06,446 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2022-12-14 10:22:06,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:06,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2022-12-14 10:22:06,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:06,448 INFO L225 Difference]: With dead ends: 135 [2022-12-14 10:22:06,448 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 10:22:06,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 10:22:06,449 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 128 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:06,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 81 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:06,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 10:22:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 132. [2022-12-14 10:22:06,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 68 states have (on average 2.073529411764706) internal successors, (141), 131 states have internal predecessors, (141), 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 10:22:06,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 141 transitions. [2022-12-14 10:22:06,458 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 141 transitions. Word has length 2 [2022-12-14 10:22:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:06,458 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 141 transitions. [2022-12-14 10:22:06,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 10:22:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 141 transitions. [2022-12-14 10:22:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:22:06,459 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:06,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 10:22:06,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:22:06,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:06,460 INFO L85 PathProgramCache]: Analyzing trace with hash 2130162285, now seen corresponding path program 1 times [2022-12-14 10:22:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:06,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341494127] [2022-12-14 10:22:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:06,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:06,576 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 10:22:06,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:06,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341494127] [2022-12-14 10:22:06,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341494127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:06,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:06,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:06,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800450164] [2022-12-14 10:22:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:06,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:22:06,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:22:06,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:22:06,579 INFO L87 Difference]: Start difference. First operand 132 states and 141 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 10:22:06,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:06,711 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2022-12-14 10:22:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:22:06,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 10:22:06,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:06,712 INFO L225 Difference]: With dead ends: 138 [2022-12-14 10:22:06,712 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 10:22:06,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:22:06,713 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 225 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:06,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 58 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:06,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 10:22:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 129. [2022-12-14 10:22:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 81 states have (on average 1.8395061728395061) internal successors, (149), 128 states have internal predecessors, (149), 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 10:22:06,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-12-14 10:22:06,721 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 6 [2022-12-14 10:22:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:06,722 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-12-14 10:22:06,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 10:22:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2022-12-14 10:22:06,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:22:06,722 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:06,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 10:22:06,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:22:06,723 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:06,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash 2130162286, now seen corresponding path program 1 times [2022-12-14 10:22:06,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:06,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822854519] [2022-12-14 10:22:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:06,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:06,841 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 10:22:06,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:06,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822854519] [2022-12-14 10:22:06,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822854519] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:06,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:06,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:22:06,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212146125] [2022-12-14 10:22:06,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:06,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:22:06,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:22:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:22:06,844 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 10:22:06,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:06,999 INFO L93 Difference]: Finished difference Result 136 states and 156 transitions. [2022-12-14 10:22:07,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:22:07,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 10:22:07,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:07,001 INFO L225 Difference]: With dead ends: 136 [2022-12-14 10:22:07,001 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 10:22:07,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:22:07,002 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 243 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:07,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 168 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 10:22:07,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2022-12-14 10:22:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 85 states have (on average 1.811764705882353) internal successors, (154), 132 states have internal predecessors, (154), 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 10:22:07,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2022-12-14 10:22:07,010 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 6 [2022-12-14 10:22:07,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:07,010 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2022-12-14 10:22:07,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 10:22:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2022-12-14 10:22:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:22:07,011 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:07,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:07,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:22:07,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:07,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:07,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1613471248, now seen corresponding path program 1 times [2022-12-14 10:22:07,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:07,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747806785] [2022-12-14 10:22:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,032 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 10:22:07,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:07,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747806785] [2022-12-14 10:22:07,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747806785] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:07,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:07,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:07,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927430364] [2022-12-14 10:22:07,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:07,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:07,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:07,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:07,034 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10:22:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:07,070 INFO L93 Difference]: Finished difference Result 163 states and 188 transitions. [2022-12-14 10:22:07,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:07,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-12-14 10:22:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:07,071 INFO L225 Difference]: With dead ends: 163 [2022-12-14 10:22:07,071 INFO L226 Difference]: Without dead ends: 163 [2022-12-14 10:22:07,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 10:22:07,072 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 85 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:07,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 150 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:22:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-12-14 10:22:07,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 135. [2022-12-14 10:22:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 87 states have (on average 1.7816091954022988) internal successors, (155), 134 states have internal predecessors, (155), 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 10:22:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2022-12-14 10:22:07,076 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 8 [2022-12-14 10:22:07,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:07,077 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2022-12-14 10:22:07,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10:22:07,077 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2022-12-14 10:22:07,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:22:07,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:07,077 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:07,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:22:07,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:07,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:07,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1613126838, now seen corresponding path program 1 times [2022-12-14 10:22:07,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:07,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769080040] [2022-12-14 10:22:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,145 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 10:22:07,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:07,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769080040] [2022-12-14 10:22:07,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769080040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:07,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:07,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:22:07,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070137023] [2022-12-14 10:22:07,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:07,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:22:07,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:07,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:22:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:22:07,147 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10:22:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:07,298 INFO L93 Difference]: Finished difference Result 140 states and 162 transitions. [2022-12-14 10:22:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:22:07,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-12-14 10:22:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:07,299 INFO L225 Difference]: With dead ends: 140 [2022-12-14 10:22:07,299 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 10:22:07,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:22:07,300 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 80 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:07,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 195 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 10:22:07,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 134. [2022-12-14 10:22:07,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 87 states have (on average 1.7701149425287357) internal successors, (154), 133 states have internal predecessors, (154), 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 10:22:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 154 transitions. [2022-12-14 10:22:07,303 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 154 transitions. Word has length 8 [2022-12-14 10:22:07,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:07,303 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 154 transitions. [2022-12-14 10:22:07,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10:22:07,304 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 154 transitions. [2022-12-14 10:22:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:22:07,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:07,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:07,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:22:07,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1613126837, now seen corresponding path program 1 times [2022-12-14 10:22:07,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:07,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724673006] [2022-12-14 10:22:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,406 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 10:22:07,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:07,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724673006] [2022-12-14 10:22:07,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724673006] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:07,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:07,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:22:07,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340642661] [2022-12-14 10:22:07,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:07,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:22:07,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:07,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:22:07,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:22:07,408 INFO L87 Difference]: Start difference. First operand 134 states and 154 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10:22:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:07,560 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2022-12-14 10:22:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 10:22:07,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 8 [2022-12-14 10:22:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:07,561 INFO L225 Difference]: With dead ends: 129 [2022-12-14 10:22:07,561 INFO L226 Difference]: Without dead ends: 129 [2022-12-14 10:22:07,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:22:07,562 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 8 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:07,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 261 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-12-14 10:22:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2022-12-14 10:22:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 83 states have (on average 1.7469879518072289) internal successors, (145), 124 states have internal predecessors, (145), 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 10:22:07,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2022-12-14 10:22:07,565 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 8 [2022-12-14 10:22:07,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:07,565 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2022-12-14 10:22:07,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10:22:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2022-12-14 10:22:07,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 10:22:07,566 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:07,566 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:07,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:22:07,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:07,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:07,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1672581694, now seen corresponding path program 1 times [2022-12-14 10:22:07,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:07,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502236356] [2022-12-14 10:22:07,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:07,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:22:07,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:07,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502236356] [2022-12-14 10:22:07,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502236356] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:07,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:07,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:07,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082453832] [2022-12-14 10:22:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:07,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:22:07,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:07,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:22:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:22:07,604 INFO L87 Difference]: Start difference. First operand 125 states and 145 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 10:22:07,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:07,711 INFO L93 Difference]: Finished difference Result 199 states and 218 transitions. [2022-12-14 10:22:07,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:22:07,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 15 [2022-12-14 10:22:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:07,712 INFO L225 Difference]: With dead ends: 199 [2022-12-14 10:22:07,712 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 10:22:07,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:22:07,713 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 258 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:07,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 121 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:22:07,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 10:22:07,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 125. [2022-12-14 10:22:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 84 states have (on average 1.7261904761904763) internal successors, (145), 124 states have internal predecessors, (145), 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 10:22:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 145 transitions. [2022-12-14 10:22:07,718 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 145 transitions. Word has length 15 [2022-12-14 10:22:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:07,719 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 145 transitions. [2022-12-14 10:22:07,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 10:22:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 145 transitions. [2022-12-14 10:22:07,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:22:07,719 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:07,719 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:07,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:22:07,720 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 65 more)] === [2022-12-14 10:22:07,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:07,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1033367432, now seen corresponding path program 1 times [2022-12-14 10:22:07,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:07,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023645645] [2022-12-14 10:22:07,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:07,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:07,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023645645] [2022-12-14 10:22:07,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023645645] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:22:07,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795222181] [2022-12-14 10:22:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:07,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:22:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:22:07,830 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:22:07,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_423f61f9-79d9-4c5c-81f4-51ffb5edf13e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:22:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:07,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 10:22:07,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:22:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:07,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:22:08,062 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 10:22:08,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 10:22:08,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:08,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795222181] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:22:08,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2102520108] [2022-12-14 10:22:08,118 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 10:22:08,118 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:22:08,122 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:22:08,126 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:22:08,126 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:22:08,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,165 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 10:22:08,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:22:08,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 10:22:08,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:22:08,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 10:22:08,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:22:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 10:22:08,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,256 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 29 treesize of output 35 [2022-12-14 10:22:08,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 10:22:08,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 10:22:08,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2022-12-14 10:22:08,340 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 10:22:08,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 10:22:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 10:22:08,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:08,381 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 10:22:08,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 47 [2022-12-14 10:22:08,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,429 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-12-14 10:22:08,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 83 treesize of output 50 [2022-12-14 10:22:08,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 24 [2022-12-14 10:22:08,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 10:22:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 52 [2022-12-14 10:22:08,559 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 10:22:08,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 93 [2022-12-14 10:22:08,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 10:22:08,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 24 [2022-12-14 10:22:08,649 INFO L321 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-12-14 10:22:08,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 252 treesize of output 149 [2022-12-14 10:22:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,686 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-12-14 10:22:08,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 199 treesize of output 156 [2022-12-14 10:22:08,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 47 [2022-12-14 10:22:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:08,809 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 10:22:08,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 487 treesize of output 368 [2022-12-14 10:22:08,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,823 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:08,827 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-12-14 10:22:08,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 487 treesize of output 457 [2022-12-14 10:22:08,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:08,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:08,865 INFO L321 Elim1Store]: treesize reduction 66, result has 30.5 percent of original size [2022-12-14 10:22:08,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 7 case distinctions, treesize of input 481 treesize of output 483 [2022-12-14 10:22:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,032 INFO L321 Elim1Store]: treesize reduction 278, result has 12.0 percent of original size [2022-12-14 10:22:09,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 489 treesize of output 492 [2022-12-14 10:22:09,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:09,191 INFO L321 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2022-12-14 10:22:09,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 606 treesize of output 455 [2022-12-14 10:22:09,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:09,268 INFO L321 Elim1Store]: treesize reduction 100, result has 16.0 percent of original size [2022-12-14 10:22:09,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 542 treesize of output 520 [2022-12-14 10:22:09,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:09,382 INFO L321 Elim1Store]: treesize reduction 170, result has 17.1 percent of original size [2022-12-14 10:22:09,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 13 case distinctions, treesize of input 547 treesize of output 533 [2022-12-14 10:22:09,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:09,793 INFO L321 Elim1Store]: treesize reduction 184, result has 15.2 percent of original size [2022-12-14 10:22:09,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1255 treesize of output 756 [2022-12-14 10:22:09,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:09,899 INFO L321 Elim1Store]: treesize reduction 204, result has 13.9 percent of original size [2022-12-14 10:22:09,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 884 treesize of output 733 [2022-12-14 10:22:09,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:09,940 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 10:22:10,074 INFO L321 Elim1Store]: treesize reduction 560, result has 10.7 percent of original size [2022-12-14 10:22:10,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 789 treesize of output 764 [2022-12-14 10:22:10,476 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 19 treesize of output 1 [2022-12-14 10:22:10,479 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 10:22:10,483 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 19 treesize of output 1 [2022-12-14 10:22:10,500 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 10:22:10,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 10:22:10,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 10:22:10,514 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 10:22:10,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-12-14 10:22:10,522 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 11 treesize of output 7 [2022-12-14 10:22:10,555 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 10:22:10,555 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 60 treesize of output 39 [2022-12-14 10:22:10,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 10:22:10,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-12-14 10:22:10,593 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 10:22:10,598 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 19 treesize of output 1 [2022-12-14 10:22:10,601 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 19 treesize of output 1 [2022-12-14 10:22:10,672 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 10:22:10,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 10:22:10,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 10:22:10,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:10,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:10,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:22:10,783 INFO L321 Elim1Store]: treesize reduction 76, result has 39.7 percent of original size [2022-12-14 10:22:10,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 213 treesize of output 236 [2022-12-14 10:22:10,816 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 10:22:10,816 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 195 treesize of output 202 [2022-12-14 10:22:10,849 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 10:22:10,849 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 199 treesize of output 206 [2022-12-14 10:22:11,553 INFO L321 Elim1Store]: treesize reduction 118, result has 40.1 percent of original size [2022-12-14 10:22:11,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 874 treesize of output 780 [2022-12-14 10:22:11,705 INFO L321 Elim1Store]: treesize reduction 118, result has 40.1 percent of original size [2022-12-14 10:22:11,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 742 treesize of output 752 [2022-12-14 10:22:11,856 INFO L321 Elim1Store]: treesize reduction 306, result has 20.1 percent of original size [2022-12-14 10:22:11,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 694 treesize of output 703 [2022-12-14 10:24:08,172 WARN L233 SmtUtils]: Spent 20.36s on a formula simplification that was a NOOP. DAG size: 1912 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:24:38,324 WARN L233 SmtUtils]: Spent 10.11s on a formula simplification that was a NOOP. DAG size: 1901 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:27:44,893 WARN L233 SmtUtils]: Spent 38.00s on a formula simplification. DAG size of input: 2757 DAG size of output: 2757 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:31:23,061 WARN L233 SmtUtils]: Spent 45.25s on a formula simplification that was a NOOP. DAG size: 2754 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:32:52,871 WARN L233 SmtUtils]: Spent 45.27s on a formula simplification that was a NOOP. DAG size: 2752 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 10:33:37,727 WARN L233 SmtUtils]: Spent 22.52s on a formula simplification that was a NOOP. DAG size: 2745 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)