./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-buckets-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-buckets-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/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 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb --- 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 07:54:57,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:54:57,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:54:57,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:54:57,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:54:57,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:54:57,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:54:57,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:54:57,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:54:57,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:54:57,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:54:57,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:54:57,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:54:57,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:54:57,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:54:57,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:54:57,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:54:57,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:54:57,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:54:57,337 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:54:57,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:54:57,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:54:57,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:54:57,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:54:57,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:54:57,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:54:57,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:54:57,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:54:57,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:54:57,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:54:57,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:54:57,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:54:57,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:54:57,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:54:57,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:54:57,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:54:57,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:54:57,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:54:57,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:54:57,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:54:57,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:54:57,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 07:54:57,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:54:57,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:54:57,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:54:57,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:54:57,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:54:57,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:54:57,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:54:57,376 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:54:57,377 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:54:57,377 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:54:57,377 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:54:57,377 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:54:57,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:54:57,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:54:57,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:54:57,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:54:57,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:54:57,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:54:57,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:54:57,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:54:57,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:54:57,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:54:57,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:54:57,380 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:54:57,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:54:57,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:54:57,381 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:54:57,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:54:57,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:54:57,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:54:57,381 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a4c2149f6fe1f453f0ff04220f5041f2227f6654d0fa84d48205415ce284fcb [2022-12-14 07:54:57,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:54:57,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:54:57,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:54:57,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:54:57,593 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:54:57,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/sll-buckets-2.i [2022-12-14 07:55:00,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:55:00,420 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:55:00,421 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i [2022-12-14 07:55:00,431 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/data/2b17848f5/5b7451530a9c4999b42b637a51e7ec33/FLAG1c9947c40 [2022-12-14 07:55:00,772 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/data/2b17848f5/5b7451530a9c4999b42b637a51e7ec33 [2022-12-14 07:55:00,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:55:00,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:55:00,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:55:00,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:55:00,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:55:00,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:00" (1/1) ... [2022-12-14 07:55:00,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a62d71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:00, skipping insertion in model container [2022-12-14 07:55:00,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:00" (1/1) ... [2022-12-14 07:55:00,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:55:00,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:55:01,053 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22663,22676] [2022-12-14 07:55:01,058 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22734,22747] [2022-12-14 07:55:01,060 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22862,22875] [2022-12-14 07:55:01,064 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23275,23288] [2022-12-14 07:55:01,065 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23364,23377] [2022-12-14 07:55:01,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:55:01,077 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:55:01,111 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22663,22676] [2022-12-14 07:55:01,112 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22734,22747] [2022-12-14 07:55:01,113 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[22862,22875] [2022-12-14 07:55:01,116 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23275,23288] [2022-12-14 07:55:01,117 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_5af4c3ac-1077-4157-ae50-40ce8c67e63b/sv-benchmarks/c/forester-heap/sll-buckets-2.i[23364,23377] [2022-12-14 07:55:01,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:55:01,149 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:55:01,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01 WrapperNode [2022-12-14 07:55:01,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:55:01,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:55:01,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:55:01,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:55:01,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,190 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 155 [2022-12-14 07:55:01,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:55:01,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:55:01,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:55:01,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:55:01,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:55:01,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:55:01,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:55:01,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:55:01,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (1/1) ... [2022-12-14 07:55:01,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:55:01,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:55:01,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:55:01,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:55:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:55:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:55:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:55:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:55:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:55:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:55:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:55:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:55:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:55:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:55:01,390 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:55:01,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:55:01,642 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:55:01,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:55:01,693 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-12-14 07:55:01,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:01 BoogieIcfgContainer [2022-12-14 07:55:01,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:55:01,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:55:01,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:55:01,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:55:01,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:55:00" (1/3) ... [2022-12-14 07:55:01,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b5f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:01, skipping insertion in model container [2022-12-14 07:55:01,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:01" (2/3) ... [2022-12-14 07:55:01,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b5f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:55:01, skipping insertion in model container [2022-12-14 07:55:01,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:01" (3/3) ... [2022-12-14 07:55:01,705 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets-2.i [2022-12-14 07:55:01,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:55:01,719 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-12-14 07:55:01,755 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:55:01,760 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;@55641512, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:55:01,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-14 07:55:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 31 states have (on average 1.935483870967742) internal successors, (60), 36 states have internal predecessors, (60), 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 07:55:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 07:55:01,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:01,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 07:55:01,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:01,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash 196178540, now seen corresponding path program 1 times [2022-12-14 07:55:01,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:01,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791665008] [2022-12-14 07:55:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:01,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:02,054 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 07:55:02,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:02,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791665008] [2022-12-14 07:55:02,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791665008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:55:02,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:55:02,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:55:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364335981] [2022-12-14 07:55:02,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:55:02,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:55:02,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:55:02,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:55:02,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:55:02,089 INFO L87 Difference]: Start difference. First operand has 37 states, 31 states have (on average 1.935483870967742) internal successors, (60), 36 states have internal predecessors, (60), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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 07:55:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:02,225 INFO L93 Difference]: Finished difference Result 96 states and 160 transitions. [2022-12-14 07:55:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:55:02,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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 07:55:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:02,233 INFO L225 Difference]: With dead ends: 96 [2022-12-14 07:55:02,233 INFO L226 Difference]: Without dead ends: 59 [2022-12-14 07:55:02,235 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 07:55:02,238 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 83 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:02,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 56 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:55:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-14 07:55:02,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 37. [2022-12-14 07:55:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 33 states have (on average 1.303030303030303) internal successors, (43), 36 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 07:55:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-12-14 07:55:02,265 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 5 [2022-12-14 07:55:02,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:02,265 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-12-14 07:55:02,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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 07:55:02,265 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-12-14 07:55:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 07:55:02,266 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:02,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:02,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:55:02,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:02,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:02,267 INFO L85 PathProgramCache]: Analyzing trace with hash -450856688, now seen corresponding path program 1 times [2022-12-14 07:55:02,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:02,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752386963] [2022-12-14 07:55:02,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:02,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:02,347 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 07:55:02,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:02,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752386963] [2022-12-14 07:55:02,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752386963] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:55:02,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:55:02,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:55:02,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136278115] [2022-12-14 07:55:02,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:55:02,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:55:02,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:55:02,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:55:02,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:55:02,351 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:55:02,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:02,458 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-12-14 07:55:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:55:02,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-12-14 07:55:02,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:02,460 INFO L225 Difference]: With dead ends: 41 [2022-12-14 07:55:02,460 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 07:55:02,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:55:02,462 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:02,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:55:02,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 07:55:02,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 35. [2022-12-14 07:55:02,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 32 states have (on average 1.28125) internal successors, (41), 34 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 07:55:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-12-14 07:55:02,469 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 7 [2022-12-14 07:55:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:02,470 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-12-14 07:55:02,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 07:55:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-12-14 07:55:02,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 07:55:02,471 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:02,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:02,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:55:02,471 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1874340424, now seen corresponding path program 1 times [2022-12-14 07:55:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:02,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868633927] [2022-12-14 07:55:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:02,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:02,532 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 07:55:02,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:02,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868633927] [2022-12-14 07:55:02,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868633927] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:55:02,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:55:02,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:55:02,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783462294] [2022-12-14 07:55:02,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:55:02,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:55:02,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:55:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:55:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:55:02,535 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:55:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:02,615 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2022-12-14 07:55:02,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:55:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 07:55:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:02,616 INFO L225 Difference]: With dead ends: 39 [2022-12-14 07:55:02,617 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 07:55:02,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:55:02,618 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:02,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 54 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:55:02,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 07:55:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33. [2022-12-14 07:55:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 32 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 07:55:02,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2022-12-14 07:55:02,623 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 8 [2022-12-14 07:55:02,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:02,623 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2022-12-14 07:55:02,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:55:02,623 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2022-12-14 07:55:02,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:55:02,624 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:02,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:02,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:55:02,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:02,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2023416261, now seen corresponding path program 1 times [2022-12-14 07:55:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:02,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594495622] [2022-12-14 07:55:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:03,193 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 07:55:03,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:03,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594495622] [2022-12-14 07:55:03,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594495622] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:55:03,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:55:03,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:55:03,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405401375] [2022-12-14 07:55:03,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:55:03,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:55:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:55:03,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:55:03,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:55:03,196 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.8) 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 07:55:03,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:03,303 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2022-12-14 07:55:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:55:03,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) 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 07:55:03,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:03,304 INFO L225 Difference]: With dead ends: 52 [2022-12-14 07:55:03,304 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 07:55:03,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:55:03,306 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:03,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 81 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:55:03,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 07:55:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2022-12-14 07:55:03,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 36 states have (on average 1.25) internal successors, (45), 37 states have internal predecessors, (45), 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 07:55:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-12-14 07:55:03,315 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 9 [2022-12-14 07:55:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:03,316 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-12-14 07:55:03,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) 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 07:55:03,316 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-12-14 07:55:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 07:55:03,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:03,317 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:03,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:55:03,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:03,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:03,318 INFO L85 PathProgramCache]: Analyzing trace with hash 783479132, now seen corresponding path program 1 times [2022-12-14 07:55:03,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:03,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220740794] [2022-12-14 07:55:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:03,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:03,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:03,712 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 07:55:03,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:03,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220740794] [2022-12-14 07:55:03,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220740794] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:55:03,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289942696] [2022-12-14 07:55:03,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:03,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:55:03,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:55:03,714 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:55:03,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:55:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:03,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-14 07:55:03,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:55:03,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:03,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 26 [2022-12-14 07:55:03,937 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 07:55:03,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 64 [2022-12-14 07:55:03,967 INFO L321 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2022-12-14 07:55:03,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 46 [2022-12-14 07:55:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 96 [2022-12-14 07:55:04,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 104 [2022-12-14 07:55:04,085 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 61 [2022-12-14 07:55:04,106 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 07:55:04,107 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 11 treesize of output 11 [2022-12-14 07:55:04,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 1 [2022-12-14 07:55:04,186 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 24 treesize of output 12 [2022-12-14 07:55:04,192 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 07:55:04,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:55:04,259 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:55:04,259 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 93 treesize of output 91 [2022-12-14 07:55:04,272 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 07:55:04,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 84 treesize of output 121 [2022-12-14 07:55:04,350 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 07:55:04,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289942696] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:55:04,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465651192] [2022-12-14 07:55:04,368 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-12-14 07:55:04,368 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:55:04,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:55:04,377 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:55:04,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:55:04,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,711 INFO L217 Elim1Store]: Index analysis took 249 ms [2022-12-14 07:55:04,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 32 [2022-12-14 07:55:04,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:04,979 INFO L217 Elim1Store]: Index analysis took 151 ms [2022-12-14 07:55:05,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2022-12-14 07:55:05,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:05,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:05,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:05,742 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-14 07:55:05,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 301 treesize of output 195 [2022-12-14 07:55:05,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:05,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:05,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:05,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:06,280 INFO L321 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2022-12-14 07:55:06,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 282 treesize of output 217 [2022-12-14 07:55:06,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 59 [2022-12-14 07:55:06,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2022-12-14 07:55:06,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 53 [2022-12-14 07:55:06,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2022-12-14 07:55:06,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-12-14 07:55:06,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 56 [2022-12-14 07:55:06,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2022-12-14 07:55:06,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,582 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:06,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:06,676 INFO L321 Elim1Store]: treesize reduction 124, result has 19.0 percent of original size [2022-12-14 07:55:06,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 410 treesize of output 303 [2022-12-14 07:55:06,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 194 [2022-12-14 07:55:06,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 5 select indices, 5 select index equivalence classes, 18 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 290 [2022-12-14 07:55:06,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,836 INFO L321 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-12-14 07:55:06,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 58 [2022-12-14 07:55:06,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:06,906 INFO L321 Elim1Store]: treesize reduction 54, result has 15.6 percent of original size [2022-12-14 07:55:06,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 54 treesize of output 73 [2022-12-14 07:55:07,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,394 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 07:55:07,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 179 [2022-12-14 07:55:07,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 26 treesize of output 18 [2022-12-14 07:55:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,459 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-12-14 07:55:07,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 129 [2022-12-14 07:55:07,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 16 [2022-12-14 07:55:07,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:07,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 11 [2022-12-14 07:55:08,093 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 07:55:09,855 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '637#(and (= |ULTIMATE.start_main_~itr~0#1.offset| 0) (= |ULTIMATE.start_main_~item~0#1.offset| 0) (= |ULTIMATE.start_main_~bucket~0#1.offset| 0) (= (select (select |#memory_int| |ULTIMATE.start_main_~bcki~0#1.base|) (+ 8 |ULTIMATE.start_main_~bcki~0#1.offset|)) (select (select |#memory_int| |ULTIMATE.start_main_~item~0#1.base|) (+ 4 |ULTIMATE.start_main_~item~0#1.offset|))) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_~itr~0#1.base| 0) (= |ULTIMATE.start_main_~bcki~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~bcki~0#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-12-14 07:55:09,855 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 07:55:09,855 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 07:55:09,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-14 07:55:09,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366281458] [2022-12-14 07:55:09,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 07:55:09,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:55:09,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:55:09,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:55:09,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-12-14 07:55:09,857 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 07:55:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:55:10,081 INFO L93 Difference]: Finished difference Result 111 states and 132 transitions. [2022-12-14 07:55:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 07:55:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 07:55:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:55:10,084 INFO L225 Difference]: With dead ends: 111 [2022-12-14 07:55:10,084 INFO L226 Difference]: Without dead ends: 109 [2022-12-14 07:55:10,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2022-12-14 07:55:10,085 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 193 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:55:10,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 82 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:55:10,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-14 07:55:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 50. [2022-12-14 07:55:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.25) internal successors, (60), 49 states have internal predecessors, (60), 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 07:55:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2022-12-14 07:55:10,096 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 13 [2022-12-14 07:55:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:55:10,096 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2022-12-14 07:55:10,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 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 07:55:10,097 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2022-12-14 07:55:10,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 07:55:10,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:55:10,097 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:55:10,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 07:55:10,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:55:10,299 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 07:55:10,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:55:10,301 INFO L85 PathProgramCache]: Analyzing trace with hash -770353938, now seen corresponding path program 1 times [2022-12-14 07:55:10,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:55:10,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788540963] [2022-12-14 07:55:10,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:10,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:55:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:10,870 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 07:55:10,870 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:55:10,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788540963] [2022-12-14 07:55:10,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788540963] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:55:10,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318075891] [2022-12-14 07:55:10,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:55:10,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:55:10,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:55:10,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:55:10,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af4c3ac-1077-4157-ae50-40ce8c67e63b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 07:55:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:55:10,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 07:55:10,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:55:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:10,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 32 [2022-12-14 07:55:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:10,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2022-12-14 07:55:11,022 INFO L321 Elim1Store]: treesize reduction 50, result has 25.4 percent of original size [2022-12-14 07:55:11,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 67 [2022-12-14 07:55:11,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 07:55:11,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2022-12-14 07:55:11,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 23 [2022-12-14 07:55:11,054 INFO L321 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-12-14 07:55:11,054 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 72 treesize of output 56 [2022-12-14 07:55:11,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:11,152 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 07:55:11,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 75 treesize of output 59 [2022-12-14 07:55:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 48 [2022-12-14 07:55:11,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:11,264 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-14 07:55:11,264 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 52 [2022-12-14 07:55:11,273 INFO L321 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-12-14 07:55:11,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 21 [2022-12-14 07:55:11,288 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 07:55:11,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:55:11,452 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 07:55:11,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318075891] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:55:11,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [543440220] [2022-12-14 07:55:11,454 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 07:55:11,454 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:55:11,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:55:11,455 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:55:11,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:55:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:11,791 INFO L217 Elim1Store]: Index analysis took 192 ms [2022-12-14 07:55:12,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2022-12-14 07:55:12,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:12,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,381 INFO L321 Elim1Store]: treesize reduction 34, result has 33.3 percent of original size [2022-12-14 07:55:12,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 308 treesize of output 202 [2022-12-14 07:55:12,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:12,407 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:12,707 INFO L321 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2022-12-14 07:55:12,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 289 treesize of output 224 [2022-12-14 07:55:12,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,761 INFO L321 Elim1Store]: treesize reduction 146, result has 22.8 percent of original size [2022-12-14 07:55:12,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 85 [2022-12-14 07:55:12,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 59 [2022-12-14 07:55:12,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 67 [2022-12-14 07:55:12,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 57 [2022-12-14 07:55:12,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 47 [2022-12-14 07:55:12,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 14 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 56 [2022-12-14 07:55:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 59 [2022-12-14 07:55:12,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:12,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2022-12-14 07:55:13,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,003 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:13,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:13,058 INFO L321 Elim1Store]: treesize reduction 196, result has 10.1 percent of original size [2022-12-14 07:55:13,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 319 treesize of output 190 [2022-12-14 07:55:13,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2022-12-14 07:55:13,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:13,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:13,140 INFO L321 Elim1Store]: treesize reduction 344, result has 10.9 percent of original size [2022-12-14 07:55:13,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 182 treesize of output 147 [2022-12-14 07:55:13,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-12-14 07:55:13,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2022-12-14 07:55:13,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:13,326 INFO L321 Elim1Store]: treesize reduction 124, result has 12.7 percent of original size [2022-12-14 07:55:13,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 23 case distinctions, treesize of input 278 treesize of output 164 [2022-12-14 07:55:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:13,352 INFO L321 Elim1Store]: treesize reduction 37, result has 7.5 percent of original size [2022-12-14 07:55:13,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 96 treesize of output 92 [2022-12-14 07:55:13,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:55:13,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 07:55:13,492 INFO L321 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-12-14 07:55:13,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-12-14 07:55:13,524 INFO L321 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-12-14 07:55:13,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-12-14 07:55:13,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:55:13,799 INFO L321 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-12-14 07:55:13,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-12-14 07:55:13,832 INFO L321 Elim1Store]: treesize reduction 18, result has 64.0 percent of original size [2022-12-14 07:55:13,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 47 [2022-12-14 07:55:13,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 07:55:13,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 07:55:14,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:14,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:14,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:14,418 INFO L321 Elim1Store]: treesize reduction 330, result has 38.2 percent of original size [2022-12-14 07:55:14,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 34 case distinctions, treesize of input 487 treesize of output 522 [2022-12-14 07:55:14,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:14,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:14,681 INFO L321 Elim1Store]: treesize reduction 130, result has 57.0 percent of original size [2022-12-14 07:55:14,681 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 310 treesize of output 434 [2022-12-14 07:55:14,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:55:14,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:14,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:55:14,962 INFO L321 Elim1Store]: treesize reduction 330, result has 38.2 percent of original size [2022-12-14 07:55:14,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 464 treesize of output 577