./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 --- 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-b5237d8 [2022-11-22 01:34:08,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:34:08,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:34:08,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:34:08,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:34:08,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:34:08,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:34:08,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:34:08,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:34:08,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:34:08,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:34:08,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:34:08,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:34:08,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:34:08,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:34:08,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:34:08,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:34:08,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:34:08,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:34:08,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:34:08,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:34:08,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:34:08,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:34:08,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:34:08,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:34:08,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:34:08,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:34:08,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:34:08,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:34:08,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:34:08,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:34:08,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:34:08,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:34:08,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:34:08,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:34:08,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:34:08,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:34:08,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:34:08,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:34:08,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:34:08,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:34:08,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:34:08,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:34:08,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:34:08,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:34:08,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:34:08,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:34:08,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:34:08,589 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:34:08,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:34:08,590 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:34:08,590 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:34:08,591 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:34:08,592 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:34:08,592 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:34:08,592 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:34:08,592 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:34:08,593 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:34:08,593 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:34:08,593 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:34:08,594 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:34:08,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:34:08,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:34:08,595 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:34:08,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:34:08,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:34:08,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:34:08,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:34:08,597 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:34:08,597 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:34:08,598 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:34:08,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:34:08,598 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:34:08,599 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:34:08,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:34:08,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:34:08,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:34:08,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:08,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:34:08,600 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:34:08,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:34:08,601 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:34:08,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:34:08,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:34:08,602 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_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1 [2022-11-22 01:34:08,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:34:08,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:34:08,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:34:08,978 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:34:08,979 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:34:08,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-22 01:34:12,024 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:34:12,305 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:34:12,305 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i [2022-11-22 01:34:12,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/data/d5a1cac92/a420e07ec89c4c1eb06aa5cb3a36c27b/FLAGae11c4359 [2022-11-22 01:34:12,338 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/data/d5a1cac92/a420e07ec89c4c1eb06aa5cb3a36c27b [2022-11-22 01:34:12,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:34:12,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:34:12,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:12,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:34:12,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:34:12,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:12,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eed81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12, skipping insertion in model container [2022-11-22 01:34:12,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:12,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:34:12,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:34:12,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:12,875 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:34:12,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:34:12,938 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:34:12,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12 WrapperNode [2022-11-22 01:34:12,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:34:12,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:12,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:34:12,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:34:12,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:12,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,016 INFO L138 Inliner]: procedures = 123, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-11-22 01:34:13,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:34:13,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:34:13,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:34:13,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:34:13,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,065 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:34:13,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:34:13,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:34:13,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:34:13,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (1/1) ... [2022-11-22 01:34:13,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:34:13,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:13,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:34:13,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:34:13,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:34:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:34:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:34:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:34:13,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:34:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:34:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:34:13,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:34:13,306 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:34:13,308 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:34:13,606 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:34:13,641 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:34:13,642 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:34:13,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:34:13 BoogieIcfgContainer [2022-11-22 01:34:13,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:34:13,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:34:13,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:34:13,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:34:13,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:34:12" (1/3) ... [2022-11-22 01:34:13,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60100e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:34:13, skipping insertion in model container [2022-11-22 01:34:13,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:34:12" (2/3) ... [2022-11-22 01:34:13,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60100e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:34:13, skipping insertion in model container [2022-11-22 01:34:13,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:34:13" (3/3) ... [2022-11-22 01:34:13,655 INFO L112 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer.i [2022-11-22 01:34:13,675 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:34:13,691 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-22 01:34:13,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:34:13,782 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@d3df832, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:34:13,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-11-22 01:34:13,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:13,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 01:34:13,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:13,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 01:34:13,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:13,817 INFO L85 PathProgramCache]: Analyzing trace with hash 3879, now seen corresponding path program 1 times [2022-11-22 01:34:13,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:13,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357978091] [2022-11-22 01:34:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:13,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:14,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:14,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:14,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357978091] [2022-11-22 01:34:14,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357978091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:14,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:14,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:34:14,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79726265] [2022-11-22 01:34:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:14,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:34:14,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:14,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:34:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:14,137 INFO L87 Difference]: Start difference. First operand has 52 states, 24 states have (on average 2.3333333333333335) internal successors, (56), 51 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:14,353 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2022-11-22 01:34:14,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:14,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 01:34:14,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:14,373 INFO L225 Difference]: With dead ends: 54 [2022-11-22 01:34:14,373 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 01:34:14,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:14,378 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:14,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 20 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 01:34:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-22 01:34:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.9259259259259258) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-22 01:34:14,415 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 2 [2022-11-22 01:34:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:14,415 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-22 01:34:14,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,415 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-11-22 01:34:14,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-22 01:34:14,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:14,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-22 01:34:14,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:34:14,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:14,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:14,418 INFO L85 PathProgramCache]: Analyzing trace with hash 3880, now seen corresponding path program 1 times [2022-11-22 01:34:14,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:14,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625940292] [2022-11-22 01:34:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:14,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:14,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:14,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625940292] [2022-11-22 01:34:14,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625940292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:14,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:14,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:34:14,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269571691] [2022-11-22 01:34:14,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:14,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:34:14,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:14,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:34:14,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:14,520 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:14,608 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-11-22 01:34:14,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:14,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-11-22 01:34:14,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:14,610 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:34:14,610 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:34:14,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:34:14,612 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:14,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 39 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:14,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:34:14,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-22 01:34:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 41 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-11-22 01:34:14,619 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 2 [2022-11-22 01:34:14,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:14,619 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-11-22 01:34:14,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,620 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-11-22 01:34:14,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:34:14,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:14,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:14,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:34:14,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:14,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1730509016, now seen corresponding path program 1 times [2022-11-22 01:34:14,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:14,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305913793] [2022-11-22 01:34:14,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:14,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:14,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:14,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305913793] [2022-11-22 01:34:14,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305913793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:14,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:14,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:34:14,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544739935] [2022-11-22 01:34:14,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:14,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:14,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:14,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:14,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:14,807 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2022-11-22 01:34:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:14,896 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2022-11-22 01:34:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:14,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2022-11-22 01:34:14,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:14,898 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:34:14,898 INFO L226 Difference]: Without dead ends: 69 [2022-11-22 01:34:14,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:14,900 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 50 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:14,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 34 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:14,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-22 01:34:14,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 43. [2022-11-22 01:34:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.7142857142857142) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2022-11-22 01:34:14,907 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 8 [2022-11-22 01:34:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:14,908 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2022-11-22 01:34:14,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2022-11-22 01:34:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2022-11-22 01:34:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:34:14,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:14,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:14,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:34:14,910 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:14,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507620, now seen corresponding path program 1 times [2022-11-22 01:34:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:14,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316772432] [2022-11-22 01:34:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:15,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:15,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316772432] [2022-11-22 01:34:15,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316772432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:15,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:15,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:34:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169158226] [2022-11-22 01:34:15,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:15,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:15,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:15,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:15,033 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-22 01:34:15,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:15,157 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2022-11-22 01:34:15,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:15,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2022-11-22 01:34:15,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:15,163 INFO L225 Difference]: With dead ends: 48 [2022-11-22 01:34:15,163 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 01:34:15,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:15,172 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 36 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:15,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 22 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 01:34:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2022-11-22 01:34:15,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 30 states have (on average 1.7) internal successors, (51), 43 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2022-11-22 01:34:15,177 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 8 [2022-11-22 01:34:15,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:15,178 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2022-11-22 01:34:15,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2022-11-22 01:34:15,178 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2022-11-22 01:34:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:34:15,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:15,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:15,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:34:15,179 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:15,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1730507621, now seen corresponding path program 1 times [2022-11-22 01:34:15,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:15,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489949725] [2022-11-22 01:34:15,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:15,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:15,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:15,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:15,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489949725] [2022-11-22 01:34:15,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489949725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:15,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:15,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:34:15,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20794913] [2022-11-22 01:34:15,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:15,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:15,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:15,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:15,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:15,451 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand has 4 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) [2022-11-22 01:34:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:15,620 INFO L93 Difference]: Finished difference Result 74 states and 85 transitions. [2022-11-22 01:34:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:15,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2022-11-22 01:34:15,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:15,626 INFO L225 Difference]: With dead ends: 74 [2022-11-22 01:34:15,627 INFO L226 Difference]: Without dead ends: 74 [2022-11-22 01:34:15,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:15,633 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:15,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 40 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:15,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-22 01:34:15,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 59. [2022-11-22 01:34:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.5777777777777777) internal successors, (71), 58 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:15,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-11-22 01:34:15,665 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 8 [2022-11-22 01:34:15,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:15,666 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-11-22 01:34:15,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2022-11-22 01:34:15,666 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-11-22 01:34:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:34:15,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:15,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:15,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:34:15,667 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:15,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:15,668 INFO L85 PathProgramCache]: Analyzing trace with hash 866437451, now seen corresponding path program 1 times [2022-11-22 01:34:15,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:15,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938698596] [2022-11-22 01:34:15,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:15,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:15,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:15,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938698596] [2022-11-22 01:34:15,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938698596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:15,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:15,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:34:15,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094098945] [2022-11-22 01:34:15,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:15,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:15,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:15,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:15,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:15,882 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:15,954 INFO L93 Difference]: Finished difference Result 58 states and 70 transitions. [2022-11-22 01:34:15,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:34:15,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-11-22 01:34:15,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:15,957 INFO L225 Difference]: With dead ends: 58 [2022-11-22 01:34:15,958 INFO L226 Difference]: Without dead ends: 58 [2022-11-22 01:34:15,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:15,962 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:15,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:15,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-22 01:34:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-22 01:34:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 57 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2022-11-22 01:34:15,985 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 10 [2022-11-22 01:34:15,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:15,990 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2022-11-22 01:34:15,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2022-11-22 01:34:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:34:15,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:15,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:15,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:34:15,992 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:15,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:15,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1463010864, now seen corresponding path program 1 times [2022-11-22 01:34:15,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:15,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241740363] [2022-11-22 01:34:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:16,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:16,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:16,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241740363] [2022-11-22 01:34:16,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241740363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:16,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:16,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:34:16,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173069270] [2022-11-22 01:34:16,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:16,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:34:16,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:16,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:34:16,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:34:16,353 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:16,515 INFO L93 Difference]: Finished difference Result 63 states and 72 transitions. [2022-11-22 01:34:16,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:34:16,516 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 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 12 [2022-11-22 01:34:16,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:16,516 INFO L225 Difference]: With dead ends: 63 [2022-11-22 01:34:16,516 INFO L226 Difference]: Without dead ends: 63 [2022-11-22 01:34:16,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:34:16,517 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 50 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:16,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 61 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:16,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-22 01:34:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2022-11-22 01:34:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.525) internal successors, (61), 52 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2022-11-22 01:34:16,522 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2022-11-22 01:34:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:16,522 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2022-11-22 01:34:16,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2022-11-22 01:34:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 01:34:16,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:16,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:16,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:34:16,524 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:16,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:16,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1462999879, now seen corresponding path program 1 times [2022-11-22 01:34:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:16,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803969498] [2022-11-22 01:34:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:16,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:16,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:16,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:16,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803969498] [2022-11-22 01:34:16,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803969498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:16,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:16,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:34:16,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612563142] [2022-11-22 01:34:16,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:16,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:34:16,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:34:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:34:16,655 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:16,738 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2022-11-22 01:34:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:34:16,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-22 01:34:16,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:16,743 INFO L225 Difference]: With dead ends: 69 [2022-11-22 01:34:16,743 INFO L226 Difference]: Without dead ends: 69 [2022-11-22 01:34:16,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:16,746 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 40 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:16,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 50 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-11-22 01:34:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 62. [2022-11-22 01:34:16,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 61 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2022-11-22 01:34:16,759 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 12 [2022-11-22 01:34:16,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:16,759 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2022-11-22 01:34:16,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2022-11-22 01:34:16,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:34:16,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:16,760 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:16,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:34:16,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:16,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1098836238, now seen corresponding path program 1 times [2022-11-22 01:34:16,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:16,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494774968] [2022-11-22 01:34:16,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:16,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:16,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:16,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494774968] [2022-11-22 01:34:16,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494774968] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072405021] [2022-11-22 01:34:16,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:16,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:16,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:16,910 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:16,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:34:17,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:17,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-22 01:34:17,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:17,147 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 13 treesize of output 9 [2022-11-22 01:34:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:17,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:34:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:17,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072405021] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:34:17,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [450695574] [2022-11-22 01:34:17,223 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 01:34:17,223 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:34:17,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:34:17,233 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:34:17,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:34:17,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:34:17,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:17,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:17,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:17,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:17,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:17,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:17,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:17,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:17,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:17,799 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:34:19,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [450695574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:19,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:34:19,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [3, 3, 3] total 13 [2022-11-22 01:34:19,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548337254] [2022-11-22 01:34:19,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:19,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 01:34:19,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:19,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 01:34:19,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:34:19,654 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:20,019 INFO L93 Difference]: Finished difference Result 78 states and 94 transitions. [2022-11-22 01:34:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:34:20,019 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:34:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:20,021 INFO L225 Difference]: With dead ends: 78 [2022-11-22 01:34:20,021 INFO L226 Difference]: Without dead ends: 64 [2022-11-22 01:34:20,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:34:20,022 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:20,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:34:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-22 01:34:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-11-22 01:34:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 63 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 79 transitions. [2022-11-22 01:34:20,026 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 79 transitions. Word has length 15 [2022-11-22 01:34:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:20,026 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 79 transitions. [2022-11-22 01:34:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 79 transitions. [2022-11-22 01:34:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:34:20,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:20,032 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:20,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:34:20,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 01:34:20,238 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:20,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:20,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1447780460, now seen corresponding path program 1 times [2022-11-22 01:34:20,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:20,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14013397] [2022-11-22 01:34:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:20,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:20,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:20,386 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:20,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14013397] [2022-11-22 01:34:20,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14013397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:20,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:20,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:34:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839612529] [2022-11-22 01:34:20,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:34:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:34:20,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:34:20,389 INFO L87 Difference]: Start difference. First operand 64 states and 79 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:20,492 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-11-22 01:34:20,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:34:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 01:34:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:20,494 INFO L225 Difference]: With dead ends: 72 [2022-11-22 01:34:20,494 INFO L226 Difference]: Without dead ends: 72 [2022-11-22 01:34:20,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:34:20,497 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:20,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 44 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:20,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-22 01:34:20,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2022-11-22 01:34:20,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 59 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2022-11-22 01:34:20,505 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 15 [2022-11-22 01:34:20,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:20,506 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2022-11-22 01:34:20,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2022-11-22 01:34:20,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:34:20,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:20,508 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:20,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:34:20,509 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:20,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:20,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1986639017, now seen corresponding path program 1 times [2022-11-22 01:34:20,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:20,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331544088] [2022-11-22 01:34:20,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:20,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:20,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:20,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331544088] [2022-11-22 01:34:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331544088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:20,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:34:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384556086] [2022-11-22 01:34:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:20,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:34:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:20,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:34:20,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:34:20,906 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:21,080 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-22 01:34:21,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:34:21,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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 19 [2022-11-22 01:34:21,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:21,082 INFO L225 Difference]: With dead ends: 76 [2022-11-22 01:34:21,082 INFO L226 Difference]: Without dead ends: 76 [2022-11-22 01:34:21,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:34:21,083 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 59 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:21,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 82 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:21,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-22 01:34:21,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2022-11-22 01:34:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4375) internal successors, (69), 59 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions. [2022-11-22 01:34:21,085 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 19 [2022-11-22 01:34:21,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:21,086 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 69 transitions. [2022-11-22 01:34:21,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions. [2022-11-22 01:34:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:34:21,086 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:21,087 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:21,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:34:21,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:21,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:21,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1456267282, now seen corresponding path program 1 times [2022-11-22 01:34:21,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:21,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361146700] [2022-11-22 01:34:21,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:21,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:21,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:21,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361146700] [2022-11-22 01:34:21,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361146700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:21,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:21,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:34:21,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569128241] [2022-11-22 01:34:21,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:21,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:34:21,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:21,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:34:21,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:34:21,526 INFO L87 Difference]: Start difference. First operand 60 states and 69 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:21,743 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-11-22 01:34:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:34:21,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 01:34:21,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:21,744 INFO L225 Difference]: With dead ends: 75 [2022-11-22 01:34:21,744 INFO L226 Difference]: Without dead ends: 75 [2022-11-22 01:34:21,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:34:21,745 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 53 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:21,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 61 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:34:21,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-22 01:34:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 60. [2022-11-22 01:34:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-11-22 01:34:21,748 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 20 [2022-11-22 01:34:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:21,748 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-11-22 01:34:21,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-11-22 01:34:21,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:34:21,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:21,752 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:21,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:34:21,752 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:21,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:21,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2100354617, now seen corresponding path program 1 times [2022-11-22 01:34:21,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:21,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316036591] [2022-11-22 01:34:21,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:21,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:22,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:22,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:22,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316036591] [2022-11-22 01:34:22,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316036591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:22,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:22,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:34:22,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780930841] [2022-11-22 01:34:22,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:22,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:34:22,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:22,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:34:22,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:34:22,186 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:22,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:22,370 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2022-11-22 01:34:22,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:34:22,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 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 21 [2022-11-22 01:34:22,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:22,372 INFO L225 Difference]: With dead ends: 61 [2022-11-22 01:34:22,372 INFO L226 Difference]: Without dead ends: 61 [2022-11-22 01:34:22,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:34:22,373 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 26 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:22,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 53 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-22 01:34:22,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-22 01:34:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 59 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 67 transitions. [2022-11-22 01:34:22,375 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 67 transitions. Word has length 21 [2022-11-22 01:34:22,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:22,376 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 67 transitions. [2022-11-22 01:34:22,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 67 transitions. [2022-11-22 01:34:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:34:22,376 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:22,377 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:22,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:34:22,377 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:22,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:22,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1013749287, now seen corresponding path program 1 times [2022-11-22 01:34:22,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:22,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920040963] [2022-11-22 01:34:22,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:22,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:22,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920040963] [2022-11-22 01:34:22,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920040963] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:22,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021826151] [2022-11-22 01:34:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:22,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:22,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:22,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:34:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:22,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 01:34:22,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:22,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:34:22,899 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:34:22,900 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 [2022-11-22 01:34:22,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:22,985 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:22,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 16 [2022-11-22 01:34:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:23,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:34:23,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021826151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:23,040 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:34:23,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2022-11-22 01:34:23,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823951905] [2022-11-22 01:34:23,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:23,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:34:23,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:23,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:34:23,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:34:23,042 INFO L87 Difference]: Start difference. First operand 60 states and 67 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:23,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:23,307 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2022-11-22 01:34:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:34:23,308 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 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 22 [2022-11-22 01:34:23,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:23,309 INFO L225 Difference]: With dead ends: 68 [2022-11-22 01:34:23,309 INFO L226 Difference]: Without dead ends: 67 [2022-11-22 01:34:23,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=438, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:34:23,310 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 29 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:23,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 90 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:34:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-22 01:34:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 60. [2022-11-22 01:34:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 48 states have (on average 1.375) internal successors, (66), 59 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 66 transitions. [2022-11-22 01:34:23,313 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 66 transitions. Word has length 22 [2022-11-22 01:34:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:23,313 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 66 transitions. [2022-11-22 01:34:23,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 66 transitions. [2022-11-22 01:34:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:34:23,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:23,315 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:23,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:34:23,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 01:34:23,516 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:23,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:23,517 INFO L85 PathProgramCache]: Analyzing trace with hash 939258027, now seen corresponding path program 1 times [2022-11-22 01:34:23,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:23,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473119486] [2022-11-22 01:34:23,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:23,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:23,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:23,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:23,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473119486] [2022-11-22 01:34:23,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473119486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:23,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862448958] [2022-11-22 01:34:23,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:23,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:23,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:23,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:23,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:34:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:23,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-22 01:34:23,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:23,992 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 6 treesize of output 5 [2022-11-22 01:34:24,026 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:34:24,026 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:34:24,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:24,096 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:34:24,096 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 1 case distinctions, treesize of input 27 treesize of output 28 [2022-11-22 01:34:24,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 25 [2022-11-22 01:34:24,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:24,201 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:24,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 24 treesize of output 15 [2022-11-22 01:34:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:24,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:34:24,461 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:24,461 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 19 treesize of output 20 [2022-11-22 01:34:24,476 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:24,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 33 treesize of output 33 [2022-11-22 01:34:24,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-11-22 01:34:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:24,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862448958] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:34:24,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [984958391] [2022-11-22 01:34:24,661 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:34:24,661 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:34:24,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:34:24,662 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:34:24,662 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:34:24,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,687 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:34:24,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:24,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:24,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:24,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:24,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:24,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:24,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:24,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:24,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:34:24,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:34:24,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:34:24,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:24,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:25,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:25,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:34:25,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:34:25,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,093 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 50 treesize of output 58 [2022-11-22 01:34:25,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,117 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 46 treesize of output 54 [2022-11-22 01:34:25,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:25,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-11-22 01:34:25,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:25,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,291 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 01:34:25,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 186 treesize of output 140 [2022-11-22 01:34:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-22 01:34:25,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,371 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,373 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,390 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:34:25,390 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-22 01:34:25,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-22 01:34:25,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:25,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:25,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,518 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:25,588 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-22 01:34:25,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-22 01:34:25,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:25,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-22 01:34:26,024 INFO L321 Elim1Store]: treesize reduction 254, result has 14.2 percent of original size [2022-11-22 01:34:26,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 862 treesize of output 848 [2022-11-22 01:34:26,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,308 INFO L321 Elim1Store]: treesize reduction 422, result has 11.0 percent of original size [2022-11-22 01:34:26,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 943 treesize of output 591 [2022-11-22 01:34:26,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,342 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,511 INFO L321 Elim1Store]: treesize reduction 426, result has 10.1 percent of original size [2022-11-22 01:34:26,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 943 treesize of output 785 [2022-11-22 01:34:26,580 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:34:26,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 947 treesize of output 930 [2022-11-22 01:34:26,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,748 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,920 INFO L321 Elim1Store]: treesize reduction 474, result has 8.7 percent of original size [2022-11-22 01:34:26,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 603 [2022-11-22 01:34:26,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:26,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:26,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,216 INFO L321 Elim1Store]: treesize reduction 486, result has 7.8 percent of original size [2022-11-22 01:34:27,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 797 [2022-11-22 01:34:27,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 930 [2022-11-22 01:34:27,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,811 INFO L321 Elim1Store]: treesize reduction 552, result has 8.9 percent of original size [2022-11-22 01:34:27,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 961 treesize of output 615 [2022-11-22 01:34:27,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 930 [2022-11-22 01:34:27,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:27,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:27,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:28,057 INFO L321 Elim1Store]: treesize reduction 576, result has 8.0 percent of original size [2022-11-22 01:34:28,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 47 case distinctions, treesize of input 963 treesize of output 811 [2022-11-22 01:34:28,184 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 6 treesize of output 5 [2022-11-22 01:34:28,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:28,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:28,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:34:28,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:28,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:28,239 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 [2022-11-22 01:34:28,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:28,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:34:28,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,282 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:28,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:28,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:28,302 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:28,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:28,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:28,636 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:28,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:28,771 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:28,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:28,910 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:34:28,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:34:29,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:29,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:29,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:29,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:29,380 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:34:29,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 354 [2022-11-22 01:34:29,413 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:29,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 355 treesize of output 352 [2022-11-22 01:34:29,458 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:29,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 347 treesize of output 344 [2022-11-22 01:34:29,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:29,742 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:29,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 392 treesize of output 381 [2022-11-22 01:34:29,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 383 treesize of output 362 [2022-11-22 01:34:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:29,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:29,823 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:29,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 384 treesize of output 373 [2022-11-22 01:34:29,947 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:34:31,597 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2181#(and (= |ULTIMATE.start_main_~y~0#1.offset| 0) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0) (= |#NULL.base| 0))' at error location [2022-11-22 01:34:31,597 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:34:31,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:34:31,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 19 [2022-11-22 01:34:31,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454108123] [2022-11-22 01:34:31,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:34:31,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-22 01:34:31,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:31,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-22 01:34:31,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1233, Unknown=2, NotChecked=0, Total=1406 [2022-11-22 01:34:31,601 INFO L87 Difference]: Start difference. First operand 60 states and 66 transitions. Second operand has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:32,510 INFO L93 Difference]: Finished difference Result 99 states and 108 transitions. [2022-11-22 01:34:32,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:34:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 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 22 [2022-11-22 01:34:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:32,511 INFO L225 Difference]: With dead ends: 99 [2022-11-22 01:34:32,512 INFO L226 Difference]: Without dead ends: 99 [2022-11-22 01:34:32,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=318, Invalid=1936, Unknown=2, NotChecked=0, Total=2256 [2022-11-22 01:34:32,514 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 205 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:32,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 106 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:34:32,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-22 01:34:32,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 63. [2022-11-22 01:34:32,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 62 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 70 transitions. [2022-11-22 01:34:32,517 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 70 transitions. Word has length 22 [2022-11-22 01:34:32,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:32,518 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 70 transitions. [2022-11-22 01:34:32,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:32,518 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 70 transitions. [2022-11-22 01:34:32,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:34:32,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:32,525 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:32,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:34:32,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-22 01:34:32,726 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:32,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:32,727 INFO L85 PathProgramCache]: Analyzing trace with hash 939256631, now seen corresponding path program 1 times [2022-11-22 01:34:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:32,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323958860] [2022-11-22 01:34:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:33,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323958860] [2022-11-22 01:34:33,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323958860] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952444711] [2022-11-22 01:34:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:33,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:33,077 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:33,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:34:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:33,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-22 01:34:33,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:33,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:34:33,237 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:34:33,237 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 [2022-11-22 01:34:33,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:33,307 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:34:33,308 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 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-22 01:34:33,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:33,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-22 01:34:33,441 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:33,444 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:33,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 16 [2022-11-22 01:34:33,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:34:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:33,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:34:33,793 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:33,794 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 49 treesize of output 53 [2022-11-22 01:34:33,927 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:33,928 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 18 treesize of output 19 [2022-11-22 01:34:33,938 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:33,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 30 [2022-11-22 01:34:33,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-22 01:34:34,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:34,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952444711] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:34:34,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952300154] [2022-11-22 01:34:34,054 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 01:34:34,054 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:34:34,054 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:34:34,055 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:34:34,055 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:34:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:34:34,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:34,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:34,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:34,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:34,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:34,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:34,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:34,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,288 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:34:34,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:34:34,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:34:34,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:34,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:34:34,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:34:34,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,477 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 46 treesize of output 54 [2022-11-22 01:34:34,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,499 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 50 treesize of output 58 [2022-11-22 01:34:34,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-22 01:34:34,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,641 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-22 01:34:34,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-22 01:34:34,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,669 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:34:34,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-22 01:34:34,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:34,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,751 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:34:34,752 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-22 01:34:34,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-22 01:34:34,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:34,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,883 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:34,918 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-22 01:34:34,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-22 01:34:34,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:34,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-22 01:34:35,392 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-22 01:34:35,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-22 01:34:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,566 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,634 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-22 01:34:35,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-22 01:34:35,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,764 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-22 01:34:35,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-22 01:34:35,817 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:34:35,817 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 769 treesize of output 752 [2022-11-22 01:34:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,944 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:35,947 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:35,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,017 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-22 01:34:36,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-22 01:34:36,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-22 01:34:36,068 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,148 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-22 01:34:36,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-22 01:34:36,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,411 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-22 01:34:36,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-22 01:34:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:36,527 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-22 01:34:36,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-22 01:34:36,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-22 01:34:36,629 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 6 treesize of output 5 [2022-11-22 01:34:36,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:36,642 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:36,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:36,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:34:36,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:36,683 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 [2022-11-22 01:34:36,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,701 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:36,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:36,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:36,718 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:36,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:36,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:34:36,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:36,990 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:36,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:37,077 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:37,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:37,173 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:34:37,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:34:37,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:37,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:37,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:37,358 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:34:37,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 201 treesize of output 196 [2022-11-22 01:34:37,384 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:37,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 193 treesize of output 202 [2022-11-22 01:34:37,412 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:37,412 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 189 treesize of output 198 [2022-11-22 01:34:37,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:37,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:37,955 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:37,962 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:37,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1276 treesize of output 1209 [2022-11-22 01:34:38,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:38,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:38,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:38,019 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:38,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1244 treesize of output 1177 [2022-11-22 01:34:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:38,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:38,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1211 treesize of output 1158 [2022-11-22 01:34:38,378 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:34:40,092 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2529#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:34:40,092 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:34:40,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:34:40,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 21 [2022-11-22 01:34:40,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757844848] [2022-11-22 01:34:40,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:34:40,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 01:34:40,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:40,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 01:34:40,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=1293, Unknown=2, NotChecked=0, Total=1482 [2022-11-22 01:34:40,095 INFO L87 Difference]: Start difference. First operand 63 states and 70 transitions. Second operand has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:41,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:41,089 INFO L93 Difference]: Finished difference Result 78 states and 83 transitions. [2022-11-22 01:34:41,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 01:34:41,089 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 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 22 [2022-11-22 01:34:41,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:41,090 INFO L225 Difference]: With dead ends: 78 [2022-11-22 01:34:41,090 INFO L226 Difference]: Without dead ends: 78 [2022-11-22 01:34:41,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=356, Invalid=2092, Unknown=2, NotChecked=0, Total=2450 [2022-11-22 01:34:41,092 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 106 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:41,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 122 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:34:41,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-22 01:34:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 66. [2022-11-22 01:34:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:41,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2022-11-22 01:34:41,094 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 22 [2022-11-22 01:34:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:41,095 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2022-11-22 01:34:41,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 22 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2022-11-22 01:34:41,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:34:41,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:41,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:41,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:34:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-22 01:34:41,296 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash 939256632, now seen corresponding path program 1 times [2022-11-22 01:34:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:41,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090681246] [2022-11-22 01:34:41,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:41,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:41,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:41,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:41,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090681246] [2022-11-22 01:34:41,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090681246] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:41,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749889197] [2022-11-22 01:34:41,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:41,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:41,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:41,730 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:41,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:34:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:41,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-22 01:34:41,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:41,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:34:41,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:34:41,931 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:34:41,932 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 [2022-11-22 01:34:41,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:34:41,990 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:42,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:42,042 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:34:42,043 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 1 case distinctions, treesize of input 38 treesize of output 37 [2022-11-22 01:34:42,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:34:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:42,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:42,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-22 01:34:42,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:42,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 01:34:42,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:42,180 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 25 treesize of output 16 [2022-11-22 01:34:42,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:42,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:34:42,625 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,626 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 37 treesize of output 38 [2022-11-22 01:34:42,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,635 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 29 treesize of output 30 [2022-11-22 01:34:42,647 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 52 treesize of output 52 [2022-11-22 01:34:42,660 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 82 treesize of output 78 [2022-11-22 01:34:42,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-11-22 01:34:42,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2022-11-22 01:34:42,751 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:42,752 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 18 treesize of output 19 [2022-11-22 01:34:42,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:42,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:42,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-22 01:34:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:43,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749889197] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:34:43,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [149208232] [2022-11-22 01:34:43,058 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 01:34:43,058 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:34:43,058 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:34:43,058 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:34:43,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:34:43,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:34:43,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:43,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:43,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:43,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:43,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:34:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:34:43,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:34:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:43,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:34:43,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:34:43,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,366 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 46 treesize of output 54 [2022-11-22 01:34:43,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,393 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 50 treesize of output 58 [2022-11-22 01:34:43,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 56 [2022-11-22 01:34:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:43,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,533 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,559 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-22 01:34:43,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 239 treesize of output 189 [2022-11-22 01:34:43,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,590 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:34:43,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 153 treesize of output 141 [2022-11-22 01:34:43,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,661 INFO L321 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2022-11-22 01:34:43,661 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 248 treesize of output 201 [2022-11-22 01:34:43,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,702 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:34:43,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 162 treesize of output 153 [2022-11-22 01:34:43,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:43,844 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-22 01:34:43,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-22 01:34:43,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:43,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-22 01:34:44,301 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-22 01:34:44,301 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 692 treesize of output 690 [2022-11-22 01:34:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,477 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-22 01:34:44,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 765 treesize of output 505 [2022-11-22 01:34:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,514 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,623 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-22 01:34:44,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 765 treesize of output 751 [2022-11-22 01:34:44,679 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:34:44,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 769 treesize of output 752 [2022-11-22 01:34:44,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,797 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,859 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-22 01:34:44,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 774 treesize of output 517 [2022-11-22 01:34:44,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:44,952 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-22 01:34:44,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 774 treesize of output 763 [2022-11-22 01:34:44,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:44,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-22 01:34:45,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,188 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-22 01:34:45,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 783 treesize of output 529 [2022-11-22 01:34:45,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:45,309 INFO L321 Elim1Store]: treesize reduction 272, result has 11.7 percent of original size [2022-11-22 01:34:45,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 785 treesize of output 777 [2022-11-22 01:34:45,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 773 treesize of output 752 [2022-11-22 01:34:45,417 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 6 treesize of output 5 [2022-11-22 01:34:45,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:45,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:45,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:45,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:34:45,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:45,475 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 [2022-11-22 01:34:45,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,505 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:45,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:45,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:34:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:45,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:45,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:45,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:45,810 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:45,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:45,909 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:34:45,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:34:46,004 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:34:46,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:34:46,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:46,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:46,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:46,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:46,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:46,384 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:46,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 356 treesize of output 353 [2022-11-22 01:34:46,416 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:34:46,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 339 [2022-11-22 01:34:46,446 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:46,446 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 337 [2022-11-22 01:34:46,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:46,824 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:46,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 688 treesize of output 657 [2022-11-22 01:34:46,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:46,868 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:46,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 672 treesize of output 641 [2022-11-22 01:34:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:46,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 655 treesize of output 622 [2022-11-22 01:34:47,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:34:48,724 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2860#(and (or (not (<= 0 |ULTIMATE.start_main_~list~0#1.offset|)) (not (<= (+ |ULTIMATE.start_main_~list~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~list~0#1.base|)))) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:34:48,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:34:48,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:34:48,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 19 [2022-11-22 01:34:48,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907229118] [2022-11-22 01:34:48,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:34:48,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-22 01:34:48,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:48,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-22 01:34:48,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1238, Unknown=1, NotChecked=0, Total=1406 [2022-11-22 01:34:48,726 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:49,511 INFO L93 Difference]: Finished difference Result 96 states and 104 transitions. [2022-11-22 01:34:49,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:34:49,511 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 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 22 [2022-11-22 01:34:49,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:49,512 INFO L225 Difference]: With dead ends: 96 [2022-11-22 01:34:49,512 INFO L226 Difference]: Without dead ends: 96 [2022-11-22 01:34:49,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=306, Invalid=1855, Unknown=1, NotChecked=0, Total=2162 [2022-11-22 01:34:49,514 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 147 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:49,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 112 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:34:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-22 01:34:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 75. [2022-11-22 01:34:49,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 74 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 88 transitions. [2022-11-22 01:34:49,520 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 88 transitions. Word has length 22 [2022-11-22 01:34:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:49,521 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 88 transitions. [2022-11-22 01:34:49,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 88 transitions. [2022-11-22 01:34:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:34:49,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:49,522 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:49,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:34:49,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-22 01:34:49,732 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:49,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:49,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1714033067, now seen corresponding path program 1 times [2022-11-22 01:34:49,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:49,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993269905] [2022-11-22 01:34:49,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:49,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:50,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:50,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:50,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993269905] [2022-11-22 01:34:50,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993269905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:34:50,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:34:50,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:34:50,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603915639] [2022-11-22 01:34:50,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:34:50,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:34:50,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:34:50,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:34:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:34:50,125 INFO L87 Difference]: Start difference. First operand 75 states and 88 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:50,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:34:50,344 INFO L93 Difference]: Finished difference Result 83 states and 94 transitions. [2022-11-22 01:34:50,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:34:50,345 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 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 24 [2022-11-22 01:34:50,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:34:50,345 INFO L225 Difference]: With dead ends: 83 [2022-11-22 01:34:50,346 INFO L226 Difference]: Without dead ends: 83 [2022-11-22 01:34:50,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:34:50,346 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 50 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:34:50,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 63 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:34:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-22 01:34:50,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 75. [2022-11-22 01:34:50,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 63 states have (on average 1.380952380952381) internal successors, (87), 74 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:50,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2022-11-22 01:34:50,349 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 24 [2022-11-22 01:34:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:34:50,349 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2022-11-22 01:34:50,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:34:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2022-11-22 01:34:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:34:50,350 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:34:50,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:34:50,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:34:50,350 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:34:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:34:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2081666968, now seen corresponding path program 1 times [2022-11-22 01:34:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:34:50,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575537153] [2022-11-22 01:34:50,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:50,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:34:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:50,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:50,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:34:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575537153] [2022-11-22 01:34:50,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575537153] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:34:50,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334016520] [2022-11-22 01:34:50,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:34:50,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:34:50,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:34:50,948 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:34:50,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:34:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:34:51,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-22 01:34:51,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:34:51,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:34:51,119 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:34:51,119 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 [2022-11-22 01:34:51,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:51,149 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:34:51,149 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 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-22 01:34:51,172 INFO L321 Elim1Store]: treesize reduction 30, result has 37.5 percent of original size [2022-11-22 01:34:51,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 29 [2022-11-22 01:34:51,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:51,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-11-22 01:34:51,355 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:51,377 INFO L321 Elim1Store]: treesize reduction 10, result has 68.8 percent of original size [2022-11-22 01:34:51,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 41 [2022-11-22 01:34:51,486 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:34:51,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-22 01:34:51,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:34:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:51,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:34:52,328 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:52,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 229 treesize of output 293 [2022-11-22 01:34:53,602 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_~y~0#1.offset| 8))) (and (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int)) (or (forall ((v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse0 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (= |c_ULTIMATE.start_main_~list~0#1.base| .cse0) (forall ((v_prenex_3 Int)) (or (forall ((v_prenex_5 Int) (v_prenex_4 (Array Int Int))) (or (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_5)) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (= .cse0 v_prenex_3) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3))) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| .cse0)))) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|))) (or (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_4 (Array Int Int))) (or (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (or (= |c_ULTIMATE.start_main_~list~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|)) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|)))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (or (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_4 (Array Int Int))) (or (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| v_prenex_3) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (= |c_ULTIMATE.start_main_~list~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|)) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse2 (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|))) (let ((.cse3 (select .cse2 |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_65| |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (= (select .cse2 8) .cse3)) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_65|)) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| .cse3))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse4 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_4 (Array Int Int))) (or (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| v_prenex_3) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (= |c_ULTIMATE.start_main_~list~0#1.base| .cse4) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| .cse4)))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse5 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (forall ((v_prenex_3 Int)) (or (forall ((v_prenex_5 Int) (v_prenex_4 (Array Int Int))) (or (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 v_prenex_5)) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (= .cse5 v_prenex_3) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3))) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| .cse5)))) (forall ((v_prenex_5 Int) (|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_prenex_3 Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int) (v_prenex_4 (Array Int Int))) (or (= (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|) v_prenex_3) (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| v_prenex_3) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (or (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_65| |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|)) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_65|)) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int) (v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse6 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (= |c_ULTIMATE.start_main_~list~0#1.base| .cse6) (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_4 (Array Int Int))) (or (= .cse6 v_prenex_3) (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (= |v_ULTIMATE.start_main_#t~malloc8#1.base_13| v_prenex_3) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5)))))))) (forall ((|v_ULTIMATE.start_main_#t~malloc8#1.base_13| Int)) (or (forall ((v_ArrVal_850 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_65| Int)) (let ((.cse7 (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_850) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 |v_ULTIMATE.start_main_#t~malloc8#1.base_13|) |v_ULTIMATE.start_main_~list~0#1.offset_65|))) (or (= |c_ULTIMATE.start_main_~list~0#1.base| .cse7) (forall ((v_prenex_5 Int) (v_prenex_3 Int) (v_prenex_4 (Array Int Int))) (or (= .cse7 v_prenex_3) (not (<= v_prenex_5 |c_ULTIMATE.start_main_~y~0#1.offset|)) (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_3) (not (<= 0 v_prenex_5)) (not (= |c_ULTIMATE.start_main_~y~0#1.base| (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_4) |c_ULTIMATE.start_main_~y~0#1.base|) .cse1 v_prenex_3) v_prenex_5)))))))) (= |c_ULTIMATE.start_main_~list~0#1.base| |v_ULTIMATE.start_main_#t~malloc8#1.base_13|))))) is different from false [2022-11-22 01:34:53,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:53,763 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 1 case distinctions, treesize of input 48 treesize of output 40 [2022-11-22 01:34:53,768 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 74 treesize of output 68 [2022-11-22 01:34:53,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:53,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2022-11-22 01:34:53,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:53,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:53,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 72 [2022-11-22 01:34:53,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2022-11-22 01:34:53,873 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,873 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 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-22 01:34:53,881 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,881 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 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-22 01:34:53,887 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,888 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 1 case distinctions, treesize of input 68 treesize of output 1 [2022-11-22 01:34:53,896 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 1 [2022-11-22 01:34:53,904 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,905 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 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-22 01:34:53,912 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,912 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 1 case distinctions, treesize of input 48 treesize of output 1 [2022-11-22 01:34:53,918 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,919 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 1 case distinctions, treesize of input 23 treesize of output 1 [2022-11-22 01:34:53,927 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,927 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 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-22 01:34:53,935 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:53,935 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 1 case distinctions, treesize of input 71 treesize of output 1 [2022-11-22 01:34:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:34:54,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334016520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:34:54,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1216306797] [2022-11-22 01:34:54,015 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 01:34:54,015 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:34:54,015 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:34:54,015 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:34:54,016 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:34:54,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:34:54,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:54,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:54,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:54,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:54,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:54,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:34:54,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:54,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 01:34:54,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:54,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 01:34:54,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 01:34:54,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-22 01:34:54,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2022-11-22 01:34:54,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-11-22 01:34:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 01:34:54,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,370 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 44 treesize of output 52 [2022-11-22 01:34:54,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 61 [2022-11-22 01:34:54,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:34:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,490 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,517 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 01:34:54,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 270 treesize of output 180 [2022-11-22 01:34:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 72 [2022-11-22 01:34:54,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,603 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,626 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:34:54,627 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 279 treesize of output 192 [2022-11-22 01:34:54,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 84 [2022-11-22 01:34:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 74 [2022-11-22 01:34:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:34:54,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:54,874 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-22 01:34:54,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 345 treesize of output 241 [2022-11-22 01:34:54,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:54,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2022-11-22 01:34:55,550 INFO L321 Elim1Store]: treesize reduction 492, result has 11.2 percent of original size [2022-11-22 01:34:55,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 966 treesize of output 962 [2022-11-22 01:34:55,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:55,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:55,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:55,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:55,738 INFO L321 Elim1Store]: treesize reduction 104, result has 17.5 percent of original size [2022-11-22 01:34:55,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 31 case distinctions, treesize of input 1107 treesize of output 639 [2022-11-22 01:34:55,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:55,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:55,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:55,771 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:55,905 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-22 01:34:55,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 1107 treesize of output 1093 [2022-11-22 01:34:55,948 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:34:55,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1111 treesize of output 1094 [2022-11-22 01:34:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,171 INFO L321 Elim1Store]: treesize reduction 112, result has 11.8 percent of original size [2022-11-22 01:34:56,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 37 case distinctions, treesize of input 1116 treesize of output 651 [2022-11-22 01:34:56,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1115 treesize of output 1094 [2022-11-22 01:34:56,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,316 INFO L321 Elim1Store]: treesize reduction 220, result has 10.9 percent of original size [2022-11-22 01:34:56,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 1116 treesize of output 1105 [2022-11-22 01:34:56,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,840 INFO L321 Elim1Store]: treesize reduction 560, result has 9.2 percent of original size [2022-11-22 01:34:56,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 5 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 1121 treesize of output 1116 [2022-11-22 01:34:56,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:56,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:56,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,002 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,105 INFO L321 Elim1Store]: treesize reduction 146, result has 14.1 percent of original size [2022-11-22 01:34:57,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 1283 treesize of output 749 [2022-11-22 01:34:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1297 treesize of output 1276 [2022-11-22 01:34:57,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:57,292 INFO L321 Elim1Store]: treesize reduction 266, result has 11.9 percent of original size [2022-11-22 01:34:57,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 1307 treesize of output 1299 [2022-11-22 01:34:57,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:57,410 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 6 treesize of output 5 [2022-11-22 01:34:57,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:34:57,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:57,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:34:57,436 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 [2022-11-22 01:34:57,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:34:57,496 INFO L321 Elim1Store]: treesize reduction 20, result has 57.4 percent of original size [2022-11-22 01:34:57,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 45 [2022-11-22 01:34:57,549 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-22 01:34:57,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:34:57,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,570 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:57,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:57,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:57,585 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:34:57,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:34:57,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:34:57,759 INFO L321 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2022-11-22 01:34:57,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 39 treesize of output 43 [2022-11-22 01:34:57,825 INFO L321 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-11-22 01:34:57,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2022-11-22 01:34:57,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-22 01:34:57,979 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-22 01:34:57,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 29 [2022-11-22 01:34:58,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2022-11-22 01:34:58,091 INFO L321 Elim1Store]: treesize reduction 14, result has 50.0 percent of original size [2022-11-22 01:34:58,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 29 [2022-11-22 01:34:58,235 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:34:58,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:34:58,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:58,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:58,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:58,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:58,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:34:58,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:58,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:34:58,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2022-11-22 01:34:58,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,746 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:58,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,761 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:58,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 602 treesize of output 579 [2022-11-22 01:34:58,798 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:34:58,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 594 treesize of output 573 [2022-11-22 01:34:58,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:58,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:58,827 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:34:58,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 578 treesize of output 555 [2022-11-22 01:34:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:59,404 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:59,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1166 treesize of output 1097 [2022-11-22 01:34:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:34:59,455 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:34:59,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1130 treesize of output 1061 [2022-11-22 01:34:59,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1093 treesize of output 1048 [2022-11-22 01:34:59,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:34:59,859 INFO L321 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2022-11-22 01:34:59,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1063 treesize of output 980 [2022-11-22 01:35:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,672 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:00,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:00,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:00,799 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:00,839 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:00,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:00,914 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:00,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,946 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:00,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:00,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:00,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,047 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:01,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:01,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,195 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:01,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:01,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,362 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:01,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:01,402 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,450 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:01,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 01:35:01,484 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:01,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,564 WARN L193 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:01,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:01,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2022-11-22 01:35:01,617 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-22 01:35:01,716 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:35:04,399 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3428#(and (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:35:04,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:35:04,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:35:04,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 32 [2022-11-22 01:35:04,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102379756] [2022-11-22 01:35:04,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:35:04,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 01:35:04,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:04,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 01:35:04,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=2548, Unknown=1, NotChecked=104, Total=2970 [2022-11-22 01:35:04,402 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:35:11,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 01:35:17,846 WARN L233 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 104 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:35:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:35:19,225 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2022-11-22 01:35:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 01:35:19,226 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 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 26 [2022-11-22 01:35:19,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:35:19,227 INFO L225 Difference]: With dead ends: 84 [2022-11-22 01:35:19,227 INFO L226 Difference]: Without dead ends: 84 [2022-11-22 01:35:19,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1821 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=746, Invalid=4658, Unknown=2, NotChecked=144, Total=5550 [2022-11-22 01:35:19,229 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 165 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 61 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 58 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:35:19,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 135 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 540 Invalid, 6 Unknown, 58 Unchecked, 3.1s Time] [2022-11-22 01:35:19,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-22 01:35:19,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 69. [2022-11-22 01:35:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 68 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:35:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2022-11-22 01:35:19,235 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 26 [2022-11-22 01:35:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:35:19,237 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2022-11-22 01:35:19,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.9393939393939394) internal successors, (64), 33 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:35:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2022-11-22 01:35:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:35:19,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:35:19,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:35:19,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:35:19,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:35:19,456 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:35:19,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:35:19,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1221816285, now seen corresponding path program 1 times [2022-11-22 01:35:19,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:35:19,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097753511] [2022-11-22 01:35:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:35:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:20,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:35:20,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:35:20,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097753511] [2022-11-22 01:35:20,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097753511] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:35:20,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485215114] [2022-11-22 01:35:20,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:35:20,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:35:20,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:35:20,608 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:35:20,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:35:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:35:20,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 60 conjunts are in the unsatisfiable core [2022-11-22 01:35:20,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:35:20,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:35:20,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:20,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:20,833 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:35:20,833 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 [2022-11-22 01:35:20,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:35:20,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:35:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:20,977 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:35:20,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 62 [2022-11-22 01:35:21,001 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-22 01:35:21,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2022-11-22 01:35:21,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:21,094 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 [2022-11-22 01:35:21,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:21,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:21,113 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-22 01:35:21,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 48 [2022-11-22 01:35:21,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:21,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:21,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:21,829 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 01:35:21,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 62 treesize of output 34 [2022-11-22 01:35:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:35:21,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:35:41,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:41,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:41,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:41,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:41,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:41,931 INFO L321 Elim1Store]: treesize reduction 206, result has 50.8 percent of original size [2022-11-22 01:35:41,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 1761 treesize of output 1098 [2022-11-22 01:35:42,108 INFO L321 Elim1Store]: treesize reduction 239, result has 21.4 percent of original size [2022-11-22 01:35:42,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 25400 treesize of output 6447 [2022-11-22 01:35:42,266 INFO L321 Elim1Store]: treesize reduction 19, result has 51.3 percent of original size [2022-11-22 01:35:42,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 5452 treesize of output 5038 [2022-11-22 01:35:42,365 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-11-22 01:35:42,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 4991 treesize of output 4581 [2022-11-22 01:35:42,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2022-11-22 01:35:42,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2022-11-22 01:35:43,474 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:43,504 INFO L321 Elim1Store]: treesize reduction 17, result has 19.0 percent of original size [2022-11-22 01:35:43,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 2034 treesize of output 1818 [2022-11-22 01:35:43,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,739 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:43,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2022-11-22 01:35:43,798 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:43,803 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-11-22 01:35:43,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 722 treesize of output 1 [2022-11-22 01:35:43,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:35:43,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485215114] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:35:43,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1787737503] [2022-11-22 01:35:43,917 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2022-11-22 01:35:43,917 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:35:43,918 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:35:43,918 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:35:43,918 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:35:43,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:43,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:43,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:35:43,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:43,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:35:43,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:44,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:44,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:35:44,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:35:44,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:35:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:35:44,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:44,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:35:44,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:35:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:35:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:35:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:35:44,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:35:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:44,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,307 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 50 treesize of output 58 [2022-11-22 01:35:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:44,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,341 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 46 treesize of output 54 [2022-11-22 01:35:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2022-11-22 01:35:44,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:35:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,449 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:35:44,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 137 [2022-11-22 01:35:44,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,504 INFO L321 Elim1Store]: treesize reduction 52, result has 26.8 percent of original size [2022-11-22 01:35:44,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 237 treesize of output 187 [2022-11-22 01:35:44,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:44,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,562 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:35:44,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 158 treesize of output 149 [2022-11-22 01:35:44,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,584 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,608 INFO L321 Elim1Store]: treesize reduction 55, result has 19.1 percent of original size [2022-11-22 01:35:44,609 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 246 treesize of output 199 [2022-11-22 01:35:44,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,665 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:44,703 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-11-22 01:35:44,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 255 treesize of output 211 [2022-11-22 01:35:44,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,741 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 01:35:44,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 169 treesize of output 163 [2022-11-22 01:35:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:44,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:35:45,133 INFO L321 Elim1Store]: treesize reduction 226, result has 14.4 percent of original size [2022-11-22 01:35:45,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 781 treesize of output 769 [2022-11-22 01:35:45,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,355 INFO L321 Elim1Store]: treesize reduction 330, result has 9.8 percent of original size [2022-11-22 01:35:45,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 13 new quantified variables, introduced 33 case distinctions, treesize of input 854 treesize of output 563 [2022-11-22 01:35:45,437 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:35:45,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 858 treesize of output 841 [2022-11-22 01:35:45,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,469 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,668 INFO L321 Elim1Store]: treesize reduction 578, result has 10.0 percent of original size [2022-11-22 01:35:45,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 29 case distinctions, treesize of input 854 treesize of output 785 [2022-11-22 01:35:45,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,780 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,948 INFO L321 Elim1Store]: treesize reduction 378, result has 7.1 percent of original size [2022-11-22 01:35:45,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 4 disjoint index pairs (out of 36 index pairs), introduced 14 new quantified variables, introduced 39 case distinctions, treesize of input 863 treesize of output 575 [2022-11-22 01:35:45,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:45,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:45,997 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,171 INFO L321 Elim1Store]: treesize reduction 654, result has 8.0 percent of original size [2022-11-22 01:35:46,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 863 treesize of output 797 [2022-11-22 01:35:46,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 862 treesize of output 841 [2022-11-22 01:35:46,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,490 INFO L321 Elim1Store]: treesize reduction 446, result has 7.9 percent of original size [2022-11-22 01:35:46,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 15 new quantified variables, introduced 47 case distinctions, treesize of input 872 treesize of output 587 [2022-11-22 01:35:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,526 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,529 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:46,718 INFO L321 Elim1Store]: treesize reduction 760, result has 8.0 percent of original size [2022-11-22 01:35:46,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 44 case distinctions, treesize of input 874 treesize of output 811 [2022-11-22 01:35:46,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 862 treesize of output 841 [2022-11-22 01:35:46,813 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 6 treesize of output 5 [2022-11-22 01:35:46,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:35:46,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:46,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:35:46,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:35:46,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:35:46,861 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 [2022-11-22 01:35:46,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:35:46,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,909 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:35:46,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:35:46,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:46,925 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:35:46,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:35:46,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:35:47,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:35:47,140 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:35:47,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:35:47,241 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:35:47,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:35:47,386 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:35:47,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:35:47,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:35:47,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2022-11-22 01:35:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:47,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 01:35:47,943 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:35:47,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 483 treesize of output 468 [2022-11-22 01:35:47,996 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:35:47,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 475 treesize of output 454 [2022-11-22 01:35:48,037 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:35:48,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 459 treesize of output 444 [2022-11-22 01:35:48,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:48,344 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:48,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 931 treesize of output 884 [2022-11-22 01:35:48,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:35:48,387 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:35:48,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 907 treesize of output 860 [2022-11-22 01:35:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:35:48,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 882 treesize of output 837 [2022-11-22 01:35:48,643 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:35:53,024 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3826#(and (exists ((|v_ULTIMATE.start_main_~list~0#1.base_83| Int) (|v_ULTIMATE.start_main_~list~0#1.offset_88| Int)) (and (<= (+ 4 |v_ULTIMATE.start_main_~list~0#1.offset_88|) (select |#length| |v_ULTIMATE.start_main_~list~0#1.base_83|)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~list~0#1.base_83|) |v_ULTIMATE.start_main_~list~0#1.offset_88|) |ULTIMATE.start_main_~list~0#1.base|) (= (select |#valid| |v_ULTIMATE.start_main_~list~0#1.base_83|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~list~0#1.base_83|) |v_ULTIMATE.start_main_~list~0#1.offset_88|)) (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_88|))) (= (select |#valid| |ULTIMATE.start_main_~y~0#1.base|) 1) (<= 0 (+ 8 |ULTIMATE.start_main_~y~0#1.offset|)) (= |ULTIMATE.start_main_#t~mem11#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|))) (<= (+ 12 |ULTIMATE.start_main_~y~0#1.offset|) (select |#length| |ULTIMATE.start_main_~y~0#1.base|)) (or (not (= |ULTIMATE.start_main_~y~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|)))) (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|)) (+ 12 |ULTIMATE.start_main_~y~0#1.offset|)))) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem11#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|))) (<= 0 |#StackHeapBarrier|) (not (= |ULTIMATE.start_main_#t~mem11#1.offset| 0)) (= |#NULL.base| 0))' at error location [2022-11-22 01:35:53,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:35:53,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:35:53,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13] total 33 [2022-11-22 01:35:53,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750215446] [2022-11-22 01:35:53,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:35:53,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 01:35:53,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:35:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 01:35:53,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=2577, Unknown=4, NotChecked=0, Total=2862 [2022-11-22 01:35:53,027 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 33 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:06,684 WARN L233 SmtUtils]: Spent 8.70s on a formula simplification that was a NOOP. DAG size: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:36:09,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 01:36:11,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 01:36:18,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:20,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:29,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:31,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:38,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:41,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:43,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1] [2022-11-22 01:36:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:46,040 INFO L93 Difference]: Finished difference Result 123 states and 135 transitions. [2022-11-22 01:36:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-22 01:36:46,040 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 33 states have internal predecessors, (73), 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 26 [2022-11-22 01:36:46,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:46,041 INFO L225 Difference]: With dead ends: 123 [2022-11-22 01:36:46,041 INFO L226 Difference]: Without dead ends: 123 [2022-11-22 01:36:46,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1891 ImplicationChecksByTransitivity, 54.6s TimeCoverageRelationStatistics Valid=770, Invalid=5702, Unknown=8, NotChecked=0, Total=6480 [2022-11-22 01:36:46,043 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 294 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 114 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:46,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 205 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 783 Invalid, 8 Unknown, 0 Unchecked, 22.4s Time] [2022-11-22 01:36:46,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-22 01:36:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 99. [2022-11-22 01:36:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 98 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2022-11-22 01:36:46,047 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 26 [2022-11-22 01:36:46,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:46,047 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2022-11-22 01:36:46,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1470588235294117) internal successors, (73), 33 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2022-11-22 01:36:46,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:36:46,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:46,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:46,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:46,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:46,255 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:36:46,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:46,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1221805300, now seen corresponding path program 1 times [2022-11-22 01:36:46,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:46,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119519319] [2022-11-22 01:36:46,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:46,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:46,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:36:46,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:46,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119519319] [2022-11-22 01:36:46,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119519319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:46,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247340170] [2022-11-22 01:36:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:46,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:46,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:46,563 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:46,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:36:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:46,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-22 01:36:46,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:46,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:36:46,761 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:36:46,761 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 [2022-11-22 01:36:46,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:46,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:36:46,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:46,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 40 [2022-11-22 01:36:47,041 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:47,044 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:47,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 43 treesize of output 30 [2022-11-22 01:36:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:36:47,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:36:47,394 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:47,394 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 18 treesize of output 19 [2022-11-22 01:36:47,408 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:47,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 30 [2022-11-22 01:36:47,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-11-22 01:36:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:36:47,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247340170] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:36:47,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [962694251] [2022-11-22 01:36:47,642 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 01:36:47,642 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:36:47,643 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:36:47,643 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:36:47,643 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:36:47,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:36:47,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:36:47,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:47,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:36:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:36:47,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:36:47,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:36:47,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:47,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:36:47,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:36:47,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:36:47,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:36:47,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:36:47,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:36:47,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:47,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:48,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,032 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 50 treesize of output 58 [2022-11-22 01:36:48,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,054 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 46 treesize of output 54 [2022-11-22 01:36:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 47 [2022-11-22 01:36:48,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:36:48,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,190 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 01:36:48,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 186 treesize of output 140 [2022-11-22 01:36:48,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2022-11-22 01:36:48,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:48,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,296 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:36:48,296 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 195 treesize of output 152 [2022-11-22 01:36:48,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2022-11-22 01:36:48,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,367 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,368 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,372 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,422 INFO L321 Elim1Store]: treesize reduction 74, result has 18.7 percent of original size [2022-11-22 01:36:48,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 204 treesize of output 164 [2022-11-22 01:36:48,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 100 [2022-11-22 01:36:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:36:48,796 INFO L321 Elim1Store]: treesize reduction 254, result has 14.2 percent of original size [2022-11-22 01:36:48,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 862 treesize of output 848 [2022-11-22 01:36:48,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:48,884 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,062 INFO L321 Elim1Store]: treesize reduction 422, result has 11.0 percent of original size [2022-11-22 01:36:49,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 33 case distinctions, treesize of input 943 treesize of output 591 [2022-11-22 01:36:49,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,269 INFO L321 Elim1Store]: treesize reduction 426, result has 10.1 percent of original size [2022-11-22 01:36:49,270 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 32 case distinctions, treesize of input 943 treesize of output 785 [2022-11-22 01:36:49,350 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:36:49,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 947 treesize of output 930 [2022-11-22 01:36:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,786 INFO L321 Elim1Store]: treesize reduction 474, result has 8.7 percent of original size [2022-11-22 01:36:49,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 603 [2022-11-22 01:36:49,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:49,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:49,828 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,032 INFO L321 Elim1Store]: treesize reduction 486, result has 7.8 percent of original size [2022-11-22 01:36:50,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 5 disjoint index pairs (out of 36 index pairs), introduced 13 new quantified variables, introduced 39 case distinctions, treesize of input 952 treesize of output 797 [2022-11-22 01:36:50,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 930 [2022-11-22 01:36:50,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,429 INFO L321 Elim1Store]: treesize reduction 552, result has 8.9 percent of original size [2022-11-22 01:36:50,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 47 case distinctions, treesize of input 961 treesize of output 615 [2022-11-22 01:36:50,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,460 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:50,707 INFO L321 Elim1Store]: treesize reduction 576, result has 8.0 percent of original size [2022-11-22 01:36:50,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 14 new quantified variables, introduced 47 case distinctions, treesize of input 963 treesize of output 811 [2022-11-22 01:36:50,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 951 treesize of output 930 [2022-11-22 01:36:50,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:36:50,818 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 6 treesize of output 5 [2022-11-22 01:36:50,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:50,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:36:50,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:50,850 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 [2022-11-22 01:36:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:36:50,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:36:50,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,894 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:50,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:36:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:50,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:36:50,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:36:50,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:36:51,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:36:51,198 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:36:51,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:36:51,296 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:36:51,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:36:51,437 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:36:51,437 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 169 treesize of output 203 [2022-11-22 01:36:51,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:36:51,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:36:51,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:36:51,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:51,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:51,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:51,783 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:36:51,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 438 treesize of output 431 [2022-11-22 01:36:51,830 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:36:51,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 434 treesize of output 421 [2022-11-22 01:36:51,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:51,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:51,876 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-22 01:36:51,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 422 treesize of output 415 [2022-11-22 01:36:52,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2192 treesize of output 2107 [2022-11-22 01:36:52,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:52,711 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:36:52,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 2193 treesize of output 2012 [2022-11-22 01:36:52,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:52,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:52,771 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:36:52,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 2109 treesize of output 1928 [2022-11-22 01:36:53,205 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:36:56,461 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4292#(and (= |ULTIMATE.start_main_~y~0#1.offset| 0) (= |ULTIMATE.start_main_~y~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|))) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~y~0#1.base|) (+ 8 |ULTIMATE.start_main_~y~0#1.offset|)) (+ 12 |ULTIMATE.start_main_~y~0#1.offset|)) (= (select |#valid| |ULTIMATE.start_main_~y~0#1.base|) 1) (<= (+ 12 |ULTIMATE.start_main_~y~0#1.offset|) (select |#length| |ULTIMATE.start_main_~y~0#1.base|)) (not (< |ULTIMATE.start_main_~y~0#1.base| |#StackHeapBarrier|)) (= |#NULL.offset| 0) (exists ((|v_ULTIMATE.start_main_~list~0#1.base_94| Int) (|v_ULTIMATE.start_main_~list~0#1.offset_100| Int)) (and (<= (+ |v_ULTIMATE.start_main_~list~0#1.offset_100| 4) (select |#length| |v_ULTIMATE.start_main_~list~0#1.base_94|)) (= (select |#valid| |v_ULTIMATE.start_main_~list~0#1.base_94|) 1) (= |ULTIMATE.start_main_~list~0#1.offset| (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_main_~list~0#1.base_94|) |v_ULTIMATE.start_main_~list~0#1.offset_100|)) (= |ULTIMATE.start_main_~list~0#1.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_main_~list~0#1.base_94|) |v_ULTIMATE.start_main_~list~0#1.offset_100|)) (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_100|))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 01:36:56,461 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:36:56,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:36:56,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-22 01:36:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343445553] [2022-11-22 01:36:56,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:36:56,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-22 01:36:56,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:36:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-22 01:36:56,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1192, Unknown=2, NotChecked=0, Total=1406 [2022-11-22 01:36:56,464 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand has 20 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:58,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:36:58,033 INFO L93 Difference]: Finished difference Result 118 states and 129 transitions. [2022-11-22 01:36:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:36:58,033 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 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 26 [2022-11-22 01:36:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:36:58,034 INFO L225 Difference]: With dead ends: 118 [2022-11-22 01:36:58,034 INFO L226 Difference]: Without dead ends: 118 [2022-11-22 01:36:58,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=383, Invalid=1967, Unknown=2, NotChecked=0, Total=2352 [2022-11-22 01:36:58,036 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 115 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 31 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:36:58,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 105 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 367 Invalid, 2 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:36:58,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-22 01:36:58,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 101. [2022-11-22 01:36:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 89 states have (on average 1.2808988764044944) internal successors, (114), 100 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2022-11-22 01:36:58,040 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 26 [2022-11-22 01:36:58,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:36:58,040 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2022-11-22 01:36:58,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.789473684210526) internal successors, (53), 19 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:36:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2022-11-22 01:36:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:36:58,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:36:58,041 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:36:58,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:36:58,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-22 01:36:58,242 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:36:58,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:36:58,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1046253019, now seen corresponding path program 2 times [2022-11-22 01:36:58,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:36:58,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396712542] [2022-11-22 01:36:58,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:36:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:36:58,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:36:58,838 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:36:58,838 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:36:58,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396712542] [2022-11-22 01:36:58,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396712542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:36:58,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179336828] [2022-11-22 01:36:58,839 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:36:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:36:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:58,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:36:58,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:36:59,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:36:59,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:36:59,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-22 01:36:59,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:36:59,211 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-22 01:36:59,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 44 [2022-11-22 01:36:59,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:36:59,407 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:36:59,408 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 1 case distinctions, treesize of input 58 treesize of output 53 [2022-11-22 01:36:59,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:36:59,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 44 [2022-11-22 01:36:59,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:36:59,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 31 [2022-11-22 01:37:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:37:00,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:37:00,789 WARN L837 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~list~0#1.offset_103| Int)) (or (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_103| |c_ULTIMATE.start_main_~y~0#1.offset|)) (= (store (store |c_#valid| |c_ULTIMATE.start_main_~y~0#1.base| 0) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~y~0#1.base|) |v_ULTIMATE.start_main_~list~0#1.offset_103|) 0) |c_ULTIMATE.start_main_old_#valid#1|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_103|)))) is different from false [2022-11-22 01:37:00,807 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1133 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_103| Int)) (or (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_103| |c_ULTIMATE.start_main_~y~0#1.offset|)) (= (store (store |c_#valid| |c_ULTIMATE.start_main_~y~0#1.base| 0) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~y~0#1.base|) (+ |c_ULTIMATE.start_main_~y~0#1.offset| 8) v_ArrVal_1133) |v_ULTIMATE.start_main_~list~0#1.offset_103|) 0) |c_ULTIMATE.start_main_old_#valid#1|) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_103|)))) is different from false [2022-11-22 01:37:00,838 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1133 Int) (v_ArrVal_1131 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_103| Int)) (or (not (<= |v_ULTIMATE.start_main_~list~0#1.offset_103| |c_ULTIMATE.start_main_~y~0#1.offset|)) (not (<= 0 |v_ULTIMATE.start_main_~list~0#1.offset_103|)) (= (store (store |c_#valid| |c_ULTIMATE.start_main_~y~0#1.base| 0) (select (store (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_1131) |c_ULTIMATE.start_main_~y~0#1.base|) (+ |c_ULTIMATE.start_main_~y~0#1.offset| 8) v_ArrVal_1133) |v_ULTIMATE.start_main_~list~0#1.offset_103|) 0) |c_ULTIMATE.start_main_old_#valid#1|))) is different from false [2022-11-22 01:37:00,851 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:37:00,851 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 33 treesize of output 34 [2022-11-22 01:37:00,856 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 60 treesize of output 56 [2022-11-22 01:37:00,860 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:00,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2022-11-22 01:37:00,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:37:00,881 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:37:00,881 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 27 treesize of output 31 [2022-11-22 01:37:49,352 WARN L233 SmtUtils]: Spent 48.25s on a formula simplification. DAG size of input: 43 DAG size of output: 36 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:37:57,559 WARN L233 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:38:07,765 WARN L233 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:38:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:38:07,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179336828] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:38:07,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [617888259] [2022-11-22 01:38:07,806 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 01:38:07,806 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:38:07,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:38:07,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:38:07,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:38:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:38:07,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:07,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:07,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:38:07,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:07,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:07,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:07,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:38:07,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:38:07,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-22 01:38:07,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:07,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:38:08,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:38:08,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 01:38:08,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2022-11-22 01:38:08,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:08,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2022-11-22 01:38:08,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,113 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 50 treesize of output 58 [2022-11-22 01:38:08,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:08,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,146 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 46 treesize of output 54 [2022-11-22 01:38:08,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2022-11-22 01:38:08,255 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-22 01:38:08,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 184 treesize of output 138 [2022-11-22 01:38:08,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2022-11-22 01:38:08,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 01:38:08,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2022-11-22 01:38:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,348 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:08,368 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:38:08,368 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 7 new quantified variables, introduced 15 case distinctions, treesize of input 193 treesize of output 150 [2022-11-22 01:38:08,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:08,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-11-22 01:38:08,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:08,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:08,482 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-22 01:38:08,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 202 treesize of output 162 [2022-11-22 01:38:08,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:08,512 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 96 [2022-11-22 01:38:08,879 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-22 01:38:08,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 707 treesize of output 701 [2022-11-22 01:38:09,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:09,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:09,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:09,768 INFO L321 Elim1Store]: treesize reduction 842, result has 7.9 percent of original size [2022-11-22 01:38:09,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 4 disjoint index pairs (out of 91 index pairs), introduced 15 new quantified variables, introduced 98 case distinctions, treesize of input 1536 treesize of output 1105 [2022-11-22 01:38:09,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:09,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:09,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:09,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:10,571 INFO L321 Elim1Store]: treesize reduction 910, result has 9.0 percent of original size [2022-11-22 01:38:10,572 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 4 disjoint index pairs (out of 78 index pairs), introduced 16 new quantified variables, introduced 77 case distinctions, treesize of input 1516 treesize of output 1402 [2022-11-22 01:38:10,672 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-11-22 01:38:10,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1500 treesize of output 1467 [2022-11-22 01:38:14,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:38:14,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:38:14,124 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 [2022-11-22 01:38:14,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-11-22 01:38:14,146 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 [2022-11-22 01:38:14,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-22 01:38:14,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:38:14,186 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 6 treesize of output 5 [2022-11-22 01:38:14,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:38:14,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:14,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:14,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:14,251 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 [2022-11-22 01:38:14,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,273 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:14,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 01:38:14,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,295 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:14,296 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-22 01:38:14,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:38:14,438 INFO L321 Elim1Store]: treesize reduction 30, result has 59.5 percent of original size [2022-11-22 01:38:14,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 160 treesize of output 194 [2022-11-22 01:38:14,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:38:14,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:14,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:14,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 01:38:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:14,554 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 [2022-11-22 01:38:14,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:14,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:14,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 01:38:14,685 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:38:14,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:38:14,790 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 01:38:14,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2022-11-22 01:38:14,828 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:38:17,902 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4753#(and (<= 0 |#NULL.base|) (not (= |ULTIMATE.start_main_old_#valid#1| |#valid|)) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~y~0#1.offset|) (<= |ULTIMATE.start_main_~y~0#1.offset| 0) (<= |#NULL.base| 0) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~list~0#1.base| 0) (= |ULTIMATE.start_main_#res#1| 0))' at error location [2022-11-22 01:38:17,903 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:38:17,903 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:38:17,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13, 14] total 32 [2022-11-22 01:38:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779757080] [2022-11-22 01:38:17,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:38:17,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-22 01:38:17,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:17,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-22 01:38:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=2194, Unknown=4, NotChecked=294, Total=2756 [2022-11-22 01:38:17,905 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand has 34 states, 33 states have (on average 2.4242424242424243) internal successors, (80), 33 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:24,139 INFO L93 Difference]: Finished difference Result 144 states and 160 transitions. [2022-11-22 01:38:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:38:24,140 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.4242424242424243) internal successors, (80), 33 states have internal predecessors, (80), 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 29 [2022-11-22 01:38:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:24,141 INFO L225 Difference]: With dead ends: 144 [2022-11-22 01:38:24,141 INFO L226 Difference]: Without dead ends: 143 [2022-11-22 01:38:24,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 59 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1106 ImplicationChecksByTransitivity, 75.8s TimeCoverageRelationStatistics Valid=361, Invalid=2953, Unknown=4, NotChecked=342, Total=3660 [2022-11-22 01:38:24,143 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 103 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 179 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:24,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 284 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 692 Invalid, 0 Unknown, 179 Unchecked, 1.3s Time] [2022-11-22 01:38:24,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-22 01:38:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 123. [2022-11-22 01:38:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 122 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2022-11-22 01:38:24,147 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 29 [2022-11-22 01:38:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:24,147 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2022-11-22 01:38:24,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.4242424242424243) internal successors, (80), 33 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:38:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2022-11-22 01:38:24,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:38:24,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:24,149 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:24,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:38:24,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-22 01:38:24,356 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] === [2022-11-22 01:38:24,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:24,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1046251623, now seen corresponding path program 2 times [2022-11-22 01:38:24,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:24,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238510184] [2022-11-22 01:38:24,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:24,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:25,183 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:38:25,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:25,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238510184] [2022-11-22 01:38:25,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238510184] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:38:25,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622560082] [2022-11-22 01:38:25,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:38:25,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:38:25,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:38:25,186 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:38:25,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73473d40-3a0d-42e3-89fd-e9c2b7cd9107/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:38:25,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:38:25,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:38:25,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-22 01:38:25,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:38:25,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:38:25,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:25,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:38:25,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:25,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:25,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:25,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:38:25,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:38:25,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:38:25,677 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:38:25,678 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 [2022-11-22 01:38:25,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:38:25,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:38:25,850 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:38:25,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 50 [2022-11-22 01:38:25,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-11-22 01:38:25,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:25,956 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 01:38:25,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2022-11-22 01:38:25,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 01:38:26,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:26,481 INFO L321 Elim1Store]: treesize reduction 44, result has 21.4 percent of original size [2022-11-22 01:38:26,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 42 [2022-11-22 01:38:26,497 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:26,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 15 treesize of output 15 [2022-11-22 01:38:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:38:26,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:38:52,578 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:52,579 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 3 case distinctions, treesize of input 167 treesize of output 160 [2022-11-22 01:38:52,706 INFO L321 Elim1Store]: treesize reduction 56, result has 54.1 percent of original size [2022-11-22 01:38:52,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 131 treesize of output 99 [2022-11-22 01:38:52,736 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:52,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2488 treesize of output 2403 [2022-11-22 01:38:52,769 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:52,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 2452 treesize of output 2140 [2022-11-22 01:38:52,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2262 treesize of output 2210 [2022-11-22 01:38:52,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2210 treesize of output 2130 [2022-11-22 01:38:52,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 01:38:52,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:52,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 364 treesize of output 362 [2022-11-22 01:38:53,058 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:53,059 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 1801 treesize of output 1789 [2022-11-22 01:38:53,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:53,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:53,557 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:38:53,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 53 [2022-11-22 01:38:53,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:53,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:53,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:53,761 INFO L321 Elim1Store]: treesize reduction 179, result has 24.5 percent of original size [2022-11-22 01:38:53,762 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 3 new quantified variables, introduced 5 case distinctions, treesize of input 240552 treesize of output 36624 [2022-11-22 01:38:54,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:54,442 INFO L321 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-11-22 01:38:54,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 39928 treesize of output 34620 [2022-11-22 01:38:54,666 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:38:54,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:38:54,672 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28540 treesize of output 24510 [2022-11-22 01:38:55,100 INFO L321 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-22 01:38:55,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18587 treesize of output 16043