./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/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_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503e46fe74670dc8b1fd2e8b2c5a408fc01c83cb421ff9aefb8796417315d291 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:54:15,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:54:15,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:54:15,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:54:15,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:54:15,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:54:15,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:54:15,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:54:15,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:54:15,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:54:15,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:54:15,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:54:15,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:54:15,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:54:15,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:54:15,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:54:15,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:54:15,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:54:15,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:54:15,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:54:15,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:54:15,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:54:15,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:54:15,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:54:15,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:54:15,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:54:15,554 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:54:15,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:54:15,555 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:54:15,556 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:54:15,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:54:15,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:54:15,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:54:15,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:54:15,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:54:15,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:54:15,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:54:15,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:54:15,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:54:15,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:54:15,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:54:15,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 12:54:15,581 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:54:15,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:54:15,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:54:15,582 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:54:15,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:54:15,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:54:15,582 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:54:15,582 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:54:15,582 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:54:15,582 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:54:15,583 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:54:15,583 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:54:15,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:54:15,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:54:15,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:54:15,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:54:15,585 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:54:15,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:54:15,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:54:15,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:54:15,586 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_2147c085-35fe-467d-b6f6-1a86621def84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503e46fe74670dc8b1fd2e8b2c5a408fc01c83cb421ff9aefb8796417315d291 [2022-12-14 12:54:15,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:54:15,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:54:15,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:54:15,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:54:15,790 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:54:15,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2022-12-14 12:54:18,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:54:18,527 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:54:18,527 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i [2022-12-14 12:54:18,534 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/data/3f4e9d8e5/132c20e1277449d5b743c9c89f9fae18/FLAGd14d50fde [2022-12-14 12:54:18,544 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/data/3f4e9d8e5/132c20e1277449d5b743c9c89f9fae18 [2022-12-14 12:54:18,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:54:18,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:54:18,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:54:18,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:54:18,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:54:18,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7b5f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18, skipping insertion in model container [2022-12-14 12:54:18,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:54:18,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:54:18,763 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2022-12-14 12:54:18,767 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2022-12-14 12:54:18,767 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2022-12-14 12:54:18,768 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2022-12-14 12:54:18,769 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2022-12-14 12:54:18,770 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2022-12-14 12:54:18,770 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2022-12-14 12:54:18,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:54:18,780 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:54:18,806 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22665,22678] [2022-12-14 12:54:18,807 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22735,22748] [2022-12-14 12:54:18,808 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22799,22812] [2022-12-14 12:54:18,808 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22894,22907] [2022-12-14 12:54:18,809 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[22966,22979] [2022-12-14 12:54:18,809 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23105,23118] [2022-12-14 12:54:18,810 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_2147c085-35fe-467d-b6f6-1a86621def84/sv-benchmarks/c/forester-heap/dll-rb-sentinel-1.i[23179,23192] [2022-12-14 12:54:18,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:54:18,827 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:54:18,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18 WrapperNode [2022-12-14 12:54:18,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:54:18,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:54:18,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:54:18,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:54:18,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,858 INFO L138 Inliner]: procedures = 119, calls = 43, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 156 [2022-12-14 12:54:18,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:54:18,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:54:18,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:54:18,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:54:18,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,868 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,877 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:54:18,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:54:18,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:54:18,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:54:18,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (1/1) ... [2022-12-14 12:54:18,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:54:18,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:54:18,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:54:18,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:54:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:54:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:54:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:54:18,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:54:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:54:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:54:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:54:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:54:18,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:54:18,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:54:19,023 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:54:19,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:54:19,237 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:54:19,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:54:19,301 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-12-14 12:54:19,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:54:19 BoogieIcfgContainer [2022-12-14 12:54:19,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:54:19,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:54:19,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:54:19,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:54:19,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:54:18" (1/3) ... [2022-12-14 12:54:19,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4f60f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:54:19, skipping insertion in model container [2022-12-14 12:54:19,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:54:18" (2/3) ... [2022-12-14 12:54:19,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c4f60f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:54:19, skipping insertion in model container [2022-12-14 12:54:19,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:54:19" (3/3) ... [2022-12-14 12:54:19,312 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-1.i [2022-12-14 12:54:19,326 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:54:19,326 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-14 12:54:19,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:54:19,367 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e8f20f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:54:19,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-14 12:54:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 33 states have (on average 2.0) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:19,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 12:54:19,376 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:19,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 12:54:19,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:19,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:19,392 INFO L85 PathProgramCache]: Analyzing trace with hash 204500510, now seen corresponding path program 1 times [2022-12-14 12:54:19,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:19,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437875608] [2022-12-14 12:54:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:19,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:19,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:19,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437875608] [2022-12-14 12:54:19,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437875608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:19,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:19,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:54:19,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758624717] [2022-12-14 12:54:19,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:19,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 12:54:19,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:19,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 12:54:19,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:54:19,595 INFO L87 Difference]: Start difference. First operand has 41 states, 33 states have (on average 2.0) internal successors, (66), 40 states have internal predecessors, (66), 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 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:19,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:19,672 INFO L93 Difference]: Finished difference Result 81 states and 131 transitions. [2022-12-14 12:54:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 12:54:19,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-12-14 12:54:19,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:19,681 INFO L225 Difference]: With dead ends: 81 [2022-12-14 12:54:19,681 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 12:54:19,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 12:54:19,687 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:19,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:54:19,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 12:54:19,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 12:54:19,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.28125) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:19,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-12-14 12:54:19,712 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 5 [2022-12-14 12:54:19,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:19,713 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-12-14 12:54:19,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:19,713 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-12-14 12:54:19,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 12:54:19,713 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:19,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 12:54:19,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:54:19,714 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:19,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:19,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1987141406, now seen corresponding path program 1 times [2022-12-14 12:54:19,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:19,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675747360] [2022-12-14 12:54:19,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:19,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:25,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:25,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:25,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675747360] [2022-12-14 12:54:25,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675747360] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:25,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:25,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:54:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077052696] [2022-12-14 12:54:25,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:25,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:54:25,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:25,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:54:25,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:54:25,948 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 5 states, 5 states have (on average 1.2) 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 12:54:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:26,238 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-12-14 12:54:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:54:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) 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 12:54:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:26,240 INFO L225 Difference]: With dead ends: 39 [2022-12-14 12:54:26,240 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 12:54:26,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 12:54:26,242 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 27 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:26,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 78 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 12:54:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 12:54:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 12:54:26,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:26,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-12-14 12:54:26,247 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2022-12-14 12:54:26,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:26,247 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-12-14 12:54:26,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) 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 12:54:26,248 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-12-14 12:54:26,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 12:54:26,248 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:26,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 12:54:26,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:54:26,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:26,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:26,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1981653998, now seen corresponding path program 1 times [2022-12-14 12:54:26,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:26,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366207525] [2022-12-14 12:54:26,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:26,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:26,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:26,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:26,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366207525] [2022-12-14 12:54:26,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366207525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:26,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:26,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:54:26,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400715536] [2022-12-14 12:54:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:26,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:54:26,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:26,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:54:26,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:54:26,306 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:26,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:26,486 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-12-14 12:54:26,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:54:26,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 12:54:26,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:26,487 INFO L225 Difference]: With dead ends: 43 [2022-12-14 12:54:26,487 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 12:54:26,488 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 12:54:26,488 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 51 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:26,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 38 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:54:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 12:54:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 35. [2022-12-14 12:54:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:26,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-12-14 12:54:26,493 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 6 [2022-12-14 12:54:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:26,493 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-12-14 12:54:26,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:26,493 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-12-14 12:54:26,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:54:26,493 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:26,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:26,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:54:26,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:26,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:26,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1399326823, now seen corresponding path program 1 times [2022-12-14 12:54:26,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:26,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090147411] [2022-12-14 12:54:26,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:26,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:31,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090147411] [2022-12-14 12:54:31,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090147411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:31,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:31,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:54:31,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695419636] [2022-12-14 12:54:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:31,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:54:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:31,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:54:31,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:54:31,627 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:31,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:31,883 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-12-14 12:54:31,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:54:31,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-12-14 12:54:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:31,884 INFO L225 Difference]: With dead ends: 35 [2022-12-14 12:54:31,884 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 12:54:31,884 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 12:54:31,885 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:31,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 64 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 12:54:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 12:54:31,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 12:54:31,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.206896551724138) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:31,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-12-14 12:54:31,889 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 9 [2022-12-14 12:54:31,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:31,889 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-12-14 12:54:31,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:31,889 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-12-14 12:54:31,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:54:31,890 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:31,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:31,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:54:31,890 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:31,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1132768944, now seen corresponding path program 1 times [2022-12-14 12:54:31,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:31,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720413596] [2022-12-14 12:54:31,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:31,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:31,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:31,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720413596] [2022-12-14 12:54:31,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720413596] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:31,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:31,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:54:31,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051838126] [2022-12-14 12:54:31,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 12:54:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:31,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 12:54:31,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:54:31,977 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:32,369 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2022-12-14 12:54:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:54:32,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2022-12-14 12:54:32,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:32,370 INFO L225 Difference]: With dead ends: 58 [2022-12-14 12:54:32,370 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 12:54:32,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:54:32,371 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 43 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:32,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 68 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 12:54:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 12:54:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 40. [2022-12-14 12:54:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 12:54:32,377 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 9 [2022-12-14 12:54:32,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:32,377 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 12:54:32,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:32,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 12:54:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 12:54:32,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:32,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:32,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:54:32,378 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:32,378 INFO L85 PathProgramCache]: Analyzing trace with hash 428441035, now seen corresponding path program 1 times [2022-12-14 12:54:32,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:32,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225308878] [2022-12-14 12:54:32,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:32,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:38,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:38,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225308878] [2022-12-14 12:54:38,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225308878] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:38,756 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:38,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:54:38,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022725070] [2022-12-14 12:54:38,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:38,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:54:38,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:38,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:54:38,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:54:38,757 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:38,834 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-12-14 12:54:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:54:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-12-14 12:54:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:38,835 INFO L225 Difference]: With dead ends: 40 [2022-12-14 12:54:38,835 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 12:54:38,835 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 12:54:38,835 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:38,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 51 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 12:54:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 12:54:38,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 12:54:38,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-12-14 12:54:38,840 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 11 [2022-12-14 12:54:38,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:38,840 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-12-14 12:54:38,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:38,840 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-12-14 12:54:38,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 12:54:38,840 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:38,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:54:38,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:38,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2036609065, now seen corresponding path program 1 times [2022-12-14 12:54:38,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:38,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528661619] [2022-12-14 12:54:38,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:38,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:38,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:38,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528661619] [2022-12-14 12:54:38,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528661619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:38,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:54:38,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:54:38,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545071397] [2022-12-14 12:54:38,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:38,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:54:38,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:38,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:54:38,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:54:38,910 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:39,335 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-12-14 12:54:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:54:39,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-12-14 12:54:39,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:39,336 INFO L225 Difference]: With dead ends: 53 [2022-12-14 12:54:39,336 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 12:54:39,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 12:54:39,337 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:39,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 63 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 12:54:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 12:54:39,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-12-14 12:54:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.162162162162162) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:39,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 12:54:39,342 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 13 [2022-12-14 12:54:39,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:39,342 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 12:54:39,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:39,342 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 12:54:39,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 12:54:39,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:39,343 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:39,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:54:39,343 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:39,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:39,343 INFO L85 PathProgramCache]: Analyzing trace with hash -793501238, now seen corresponding path program 1 times [2022-12-14 12:54:39,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:39,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232943716] [2022-12-14 12:54:39,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:39,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:39,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232943716] [2022-12-14 12:54:39,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232943716] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:54:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433524299] [2022-12-14 12:54:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:39,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:54:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:54:39,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:54:39,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:54:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:39,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 12:54:39,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:54:39,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 12:54:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 12:54:39,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2022-12-14 12:54:39,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 12:54:39,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:39,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:54:39,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:54:39,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433524299] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 12:54:39,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [580418436] [2022-12-14 12:54:39,869 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 12:54:39,869 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 12:54:39,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 12:54:39,877 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 12:54:39,878 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 12:54:39,957 INFO L321 Elim1Store]: treesize reduction 60, result has 33.3 percent of original size [2022-12-14 12:54:39,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 41 [2022-12-14 12:54:39,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:39,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,031 INFO L321 Elim1Store]: treesize reduction 47, result has 35.6 percent of original size [2022-12-14 12:54:40,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 57 [2022-12-14 12:54:40,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,056 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 12:54:40,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 54 [2022-12-14 12:54:40,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:54:40,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,080 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 12:54:40,081 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 5 case distinctions, treesize of input 55 treesize of output 63 [2022-12-14 12:54:40,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:54:40,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 12:54:40,130 INFO L321 Elim1Store]: treesize reduction 54, result has 35.7 percent of original size [2022-12-14 12:54:40,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 46 [2022-12-14 12:54:40,186 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-12-14 12:54:40,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 39 treesize of output 61 [2022-12-14 12:54:40,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:40,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 42 [2022-12-14 12:54:40,354 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 12:54:41,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [580418436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:54:41,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 12:54:41,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 4] total 12 [2022-12-14 12:54:41,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342747312] [2022-12-14 12:54:41,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:54:41,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:54:41,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:54:41,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:54:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:54:41,136 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:54:42,235 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-12-14 12:54:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:54:42,236 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 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 16 [2022-12-14 12:54:42,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:54:42,236 INFO L225 Difference]: With dead ends: 45 [2022-12-14 12:54:42,236 INFO L226 Difference]: Without dead ends: 20 [2022-12-14 12:54:42,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:54:42,237 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 21 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:54:42,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 35 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 12:54:42,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-14 12:54:42,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-14 12:54:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-12-14 12:54:42,241 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 16 [2022-12-14 12:54:42,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:54:42,241 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-12-14 12:54:42,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 12:54:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-12-14 12:54:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 12:54:42,242 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:54:42,242 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:54:42,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:54:42,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:54:42,444 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-12-14 12:54:42,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:54:42,445 INFO L85 PathProgramCache]: Analyzing trace with hash -922810077, now seen corresponding path program 1 times [2022-12-14 12:54:42,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:54:42,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081037329] [2022-12-14 12:54:42,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:42,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:54:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:49,355 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 12:54:49,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:54:49,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081037329] [2022-12-14 12:54:49,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081037329] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:54:49,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986543234] [2022-12-14 12:54:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:54:49,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:54:49,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:54:49,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:54:49,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2147c085-35fe-467d-b6f6-1a86621def84/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:54:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:54:49,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 74 conjunts are in the unsatisfiable core [2022-12-14 12:54:49,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:54:49,685 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 12:54:49,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-12-14 12:54:49,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 12:54:49,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:49,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:49,952 INFO L321 Elim1Store]: treesize reduction 48, result has 48.4 percent of original size [2022-12-14 12:54:49,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 449 treesize of output 512 [2022-12-14 12:54:50,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 624 treesize of output 560 [2022-12-14 12:54:50,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 704 treesize of output 670 [2022-12-14 12:54:50,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:50,164 INFO L321 Elim1Store]: treesize reduction 56, result has 48.6 percent of original size [2022-12-14 12:54:50,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 525 treesize of output 648 [2022-12-14 12:54:50,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 656 treesize of output 622 [2022-12-14 12:54:50,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 692 treesize of output 668 [2022-12-14 12:54:50,431 INFO L321 Elim1Store]: treesize reduction 95, result has 32.6 percent of original size [2022-12-14 12:54:50,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 537 treesize of output 590 [2022-12-14 12:54:50,521 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-12-14 12:54:50,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 509 treesize of output 548 [2022-12-14 12:54:50,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 496 treesize of output 494 [2022-12-14 12:54:50,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 494 treesize of output 492 [2022-12-14 12:54:50,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:50,672 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 502 treesize of output 496 [2022-12-14 12:54:50,804 INFO L321 Elim1Store]: treesize reduction 942, result has 0.5 percent of original size [2022-12-14 12:54:50,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 486 treesize of output 656 [2022-12-14 12:54:50,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 362 treesize of output 360 [2022-12-14 12:54:50,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-12-14 12:54:50,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-12-14 12:54:51,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:51,984 INFO L321 Elim1Store]: treesize reduction 257, result has 21.6 percent of original size [2022-12-14 12:54:51,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 429 treesize of output 649 [2022-12-14 12:54:53,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 12:54:53,308 INFO L321 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2022-12-14 12:54:53,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 2339 treesize of output 2251 [2022-12-14 12:54:53,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1974 treesize of output 1924 [2022-12-14 12:54:53,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1924 treesize of output 1874 [2022-12-14 12:54:53,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1874 treesize of output 1824 [2022-12-14 12:54:53,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1824 treesize of output 1774 [2022-12-14 12:55:05,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:05,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:05,706 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:55:05,707 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 556 treesize of output 561 [2022-12-14 12:55:05,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:06,336 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:55:06,336 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 556 treesize of output 561 [2022-12-14 12:55:06,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 117 [2022-12-14 12:55:08,577 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 12:55:08,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 2879 treesize of output 5060